Language Selection

Get healthy now with MedBeds!
Click here to book your session

Protect your whole family with Orgo-Life® Quantum MedBed Energy Technology® devices.

Advertising by Adpathway

Estrets d’Arnes Loop

8 hours ago 2

PROTECT YOUR DNA WITH QUANTUM TECHNOLOGY

Orgo-Life the new way to the future

Advertising by Adpathway

The Estrets d’Arnes Loop is a 172-kilometer bikepacking route through Els Ports Natural Park, linking the Ebro Valley and Mont Caro via remote gravel tracks, limestone gorges, natural pools, and the Vía Verde de la Val de Zafán. It offers a compact but complete journey through one of northeastern Spain’s most atmospheric mountain landscapes…

Between the Ebro River and the mountains of Els Ports, the Estrets d’Arnes Loop unfolds through a landscape shaped by water, stone, wind, and silence. This 172-kilometer route crosses the regions of Baix Ebre, Terra Alta, and Matarraña, linking the lower Ebro Valley with the rugged limestone massif of Els Ports Natural Park before gradually returning toward Tortosa along one of the most atmospheric greenway corridors in northeastern Spain.

The route begins near Tortosa, under the shadow of Mont Caro, the highest and most iconic summit of the Els Ports Massif. Its presence defines the first part of the ride. The climb toward the high ground is demanding but rewarding, opening views over the Ebro Valley, the Delta del Ebro, and the surrounding mountain ranges. This first section gives the loop a strong sense of scale: riders leave the river plain behind and slowly enter a wilder, more vertical world of cliffs, pine forests, ravines, and exposed limestone.

Once the route gains altitude, the riding becomes more varied and remote. Gravel tracks, forest roads, rougher surfaces, and short paved connectors follow the natural rhythm of the terrain. Nothing stays constant for long. The route climbs and descends with the shape of the mountains, moving between dense forests, rocky walls, open views, old masías, and quiet rural corners where the landscape feels lived-in but never crowded. It’s a terrain that asks riders to adapt, to manage effort, and to accept a slower pace.

At the heart of the loop lies the Estrets d’Arnes, a narrow limestone gorge shaped by the Riu dels Estrets before its waters join the Algars River. Here, water becomes the main character. Clear pools, sculpted rock walls, and a cooler, more intimate atmosphere create one of the most memorable moments of the route. The canyon is dramatic without feeling excessive, wild without being inaccessible, and quiet enough to make the bike feel secondary for a while. In warm weather, the natural pools invite a pause. In colder months, the place still carries a sense of purity and stillness that defines the character of Els Ports.

Beyond the gorge, the route continues through a borderland of small villages, rural tracks, olive groves, dry-stone walls, and mountain edges. Places such as Horta de Sant Joan, Arnes, Beceite, Roquetes, and Tortosa give structure to the loop, but much of the experience happens between them: on gravel roads, forest tracks, and silent stretches where the presence of people becomes sparse and discreet. This is a land of vultures, wild goats, abandoned farmhouses, river corridors, and old paths that seem to belong more to the seasons than to the clock.

The final part of the loop changes rhythm as it joins the Vía Verde de la Val de Zafán, a former railway line converted into a cycling greenway. After the harder and more rugged mountain sections, the ride becomes lighter and more meditative. Tunnels, old stations, cuttings through the rock, and gentle gradients guide riders back toward the Ebro Valley. It’s not the most technical part of the route, but it gives the loop a beautiful sense of closure: the mountains slowly soften, the air becomes warmer, and the route returns to Tortosa with the feeling of having crossed a complete territory.

The Estrets d’Arnes Loop is part of Deriva Lenta Slowbiking, a long-distance bikepacking project built around a series of interconnected loops designed to explore this region at a slower pace. As a standalone route, it offers a compact but complete bikepacking experience: a major climb, remote mountain tracks, a limestone gorge, rural villages, and a gentle return along an old railway corridor. More than a route about reaching a destination, it is a ride about transitions from river to mountain, from effort to silence, from stone to water, and from movement to attention.

Route Difficulty

The Estrets d’Arnes Loop is a moderate bikepacking route that is almost entirely rideable and technically accessible but still requires good planning and a solid level of fitness. Most of the route follows gravel tracks, forest roads, compacted surfaces, quiet rural roads, and greenway sections. There is no significant singletrack and no hike-a-bike sections under normal conditions, so the technical difficulty remains moderate for riders with some gravel or off-road experience.

The physical challenge comes more from the terrain profile than from technical riding. The route includes nearly 3,000 meters of climbing over 172 kilometers, with the most demanding effort concentrated around the Els Ports Massif and the ascent toward the Mont Caro area. Some unpaved sections are slower, hillier, and more exposed than the distance alone might suggest, especially when ridden with bikepacking gear.

Logistics are manageable but should not be ignored. The route passes through several towns and villages where food and water are available, but there are also remote stretches where services are limited and riders need to be self-sufficient. Heat can significantly increase the difficulty in late spring and summer, and water planning is important during warmer months. For most experienced gravel riders, the loop is very achievable in two or three days, but it is best approached as a real bikepacking route rather than a casual gravel ride.

Route Development

I created the Estrets d’Arnes Loop as part of Deriva Lenta Slowbiking, a personal bikepacking project built around a series of interconnected loops in northeastern Spain. The project was developed to explore the territory between the Mediterranean coast, the Ebro Valley, Els Ports, Terra Alta, and Matarraña through a slower way of riding, combining bikepacking, photography, and narrative.

I’m from the area and have ridden, scouted, and refined this loop multiple times over the years. The route was shaped through repeated rides, local knowledge, and careful adjustments to improve continuity, reduce unnecessary paved sections where possible, include meaningful natural landmarks, and preserve a strong gravel and bikepacking character.

Rather than being designed as the fastest or most direct way through the region, I created the loop to connect landscapes, surfaces, villages, and atmospheres that reflect the spirit of Deriva Lenta: movement without hurry, attention to place, and time spent in the spaces between destinations.

This route is part of the Local Overnighter Project, which was created to expand our growing list of worldwide bikepacking routes—the first and largest of its kind—and create an independent map and catalog of great bikepacking overnighters, curated by you, from your own backyard. Our goal is to have accessible routes from every town and city in the world. Learn More

Submit Route Alert

As the leading creator and publisher of bikepacking routes, BIKEPACKING.com endeavors to maintain, improve, and advocate for our growing network of bikepacking routes all over the world. As such, our editorial team, route creators, and Route Stewards serve as mediators for route improvements and opportunities for connectivity, conservation, and community growth around these routes. To facilitate these efforts, we rely on our Bikepacking Collective and the greater bikepacking community to call attention to critical issues and opportunities that are discovered while riding these routes. If you have a vital issue or opportunity regarding this route that pertains to one of the subjects below, please let us know:

The Monumento a la Cabra Hispánica, a symbolic landmark dedicated to one of the most emblematic animals of the Els Ports Massif.
The climb toward Mont Caro, the highest and most iconic summit area in Els Ports.
Tossal dels Tres Reis, a historic mountain point where Catalonia, Valencia, and Aragon meet.
Sant Miquel d’Espinalvà, an abandoned rural settlement that adds a quiet, atmospheric sense of history to the route.
Toll de Vidre, a beautiful natural pool surrounded by rock and forest.
The Estrets d’Arnes, a narrow limestone gorge where sculpted rock walls, clear water, and a confluence of natural pools create one of the most memorable landscapes of the route.
Toll Blau, another striking water spot that reveals the hidden river character of Els Ports.
The Vía Verde de la Val de Zafán, a former railway line converted into a cycling greenway, with tunnels, old stations, and gentle gradients.
La Fontcalda, where water, rock, and the old railway corridor come together in one of the most special places on the final part of the route.

When to go

The best seasons to ride the Estrets d’Arnes Loop are spring and autumn, when temperatures are milder and the landscape is more comfortable for riding.
Summer can be very hot, especially in exposed sections and lower areas near the Ebro Valley, so early starts and careful water planning are strongly recommended.
In winter, snow is common in the highest parts of Els Ports, especially around the Mont Caro area and other exposed high sections. Conditions can be cold and windy, and can change quickly.
In dry periods, some fountains and natural water sources may be empty, so riders should not rely only on them.

What Bike

The route is best suited to a gravel bike or rigid mountain bike with bikepacking bags.
A minimum tire width of 40mm is recommended, though 45–50mm tires will provide more comfort and control on rougher tracks.
The route is almost entirely rideable under normal conditions, with no hike-a-bike sections and no significant singletrack.
Riders should be comfortable on gravel tracks, forest roads, compacted surfaces, and uneven rural paths.

Logistics

The route can be reached by train via Tortosa, making it a practical start and finish point for riders arriving by public transport.
Although the route passes through several towns and villages, some mountain sections feel remote and require self-sufficiency.
Camping is not generally permitted along the route, especially within protected natural areas. Riders should check current local regulations and use official campsites, lodging, or managed shelters where available.
The shelters shown on the route are not free-use huts; they are managed facilities and usually require booking in advance.
Shops, bars, and restaurants in smaller villages may have limited opening hours, especially on Sundays, holidays, and outside the main tourist season.

Dangers & Annoyances

A GPS device or offline navigation is strongly recommended, as mobile coverage may be limited in parts of Els Ports.
Lights are required for the Vía Verde de la Val de Zafán. Some tunnels are long and unlit, so riders should carry front and rear lights even if they plan to ride only during daylight.
The route passes through or near protected natural areas; riders should respect local regulations, wildlife, livestock, and trail conditions.
Fire risk can be high in dry and windy periods; avoid open flames and use stoves with extreme care.

Camping is not generally permitted along the route, especially within protected natural areas such as Els Ports Natural Park. Riders should check current local regulations before planning to sleep outside.
Low-impact bivouac rules may vary depending on the municipality and protected area regulations, so riders should not assume that sleeping outside is allowed everywhere.
The shelters shown on the route are not free-use huts. They are managed facilities and usually require advance booking.
Riders who want to sleep indoors can divide the route using rural accommodations in or near villages such as Tortosa, Roquetes, Horta de Sant Joan, Arnes, Beceite, and nearby towns.
Tortosa is the most practical start and finish point, with the widest range of accommodation, food, transport, and services.
Horta de Sant Joan and Arnes are useful overnight options for riders who want to split the route into shorter stages.
Beceite can also serve as a lodging or resupply point, depending on the chosen stage plan.
Because accommodation in smaller villages can be limited, booking ahead is recommended, especially during weekends, holidays, and peak travel periods.
Riders planning a self-supported trip should be especially careful with fire risk. Open fires are not allowed, and stove use should be avoided or handled with extreme care during dry or windy periods.
Wherever riders sleep, they should follow Leave No Trace principles and respect local communities, private land, livestock, and protected natural areas.

Tortosa is the most complete resupply point on the route, with supermarkets, restaurants, cafés, accommodation, pharmacies, and transport connections.
Roquetes is also useful for last-minute supplies before entering the more remote mountain sections of the route.
Food and water can usually be found in villages such as Horta de Sant Joan, Arnes, Beceite, and other nearby towns, but riders should check opening hours in advance.
Smaller villages may have limited shops, bars, and restaurants, especially on Sundays, holidays, and outside the main tourist season.
Riders should not assume that every village will have an open grocery store or restaurant at the time they arrive.
Water planning is important, particularly in summer or during dry periods, when some fountains and natural sources may be empty.
Carrying extra water capacity is strongly recommended for the higher and more isolated sections around Els Ports.
Natural water sources, pools, and streams should not be considered automatically drinkable; use a filter or purification method if relying on them.
The areas around Toll de Vidre, Estrets d’Arnes, Toll Blau, and La Fontcalda are closely connected to water, but they should be treated primarily as natural landmarks rather than guaranteed drinking sources.
Local food culture in the area is tied to olive oil, rural mountain cuisine, pastries, simple village bars, and traditional dishes from Baix Ebre, Terra Alta, and Matarraña.
If planning to eat in a specific village, calling ahead or checking current opening hours is recommended, especially during low season.

Suggested itinerary: Two days

The Estrets d’Arnes Loop is best ridden in two days by riders with a solid gravel/bikepacking background. Although the route includes nearly 3,000 meters of climbing, the second half of the loop is generally faster and more fluid, especially after the mountain sections, where the terrain gradually trends downhill and eventually connects with the Via Verde de la Val de Zafán. Riders who want a slower, more relaxed pace can also divide the route into three days.

locationTortosa / Roquetes to the highlands of Els Ports

Day 1 (57km, +1,899m)

The route begins in the Ebro Valley, near Tortosa and Roquetes, before gradually climbing toward the Els Ports massif. The first part of the ride leaves the lower, more populated landscape behind and moves into increasingly mountainous terrain. Mont Caro dominates the skyline, giving the opening section a strong sense of scale.

This is the most physically demanding part of the loop, with the largest share of climbing and a clear transition from valley riding to mountain gravel. As the route gains height, the environment becomes quieter and more exposed, with forest roads, limestone slopes, remote tracks, and broad views over the surrounding landscape. Riders should manage effort, water, and daylight carefully, especially when carrying bikepacking gear or riding in warm weather.

locationEls Ports to Tortosa / Roquetes

Day 2 (125km, +1,350m)

The second day connects many of the route’s most memorable places while gradually changing rhythm. Riders move through remote mountain terrain, quiet forest tracks, and rural corners before reaching the water landscapes of Toll de Vidre, Estrets d’Arnes, and Toll Blau. This section is slower and more immersive at first, with gravel tracks, rock, water, and forest shaping the experience.

After leaving the more rugged mountain terrain, the route becomes faster and more flowing as it moves toward Terra Alta and connects with the Vía Verde de la Val de Zafán, a former railway corridor converted into a cycling greenway. From there, tunnels, old stations, gentle gradients, and a general downhill trend guide riders back toward Tortosa. Some tunnels are long and unlit, so lights are necessary even during the day.

La Fontcalda is one of the key highlights of this final stretch, where water, rock, and railway history come together. The return to the Ebro Valley feels less demanding than the first day. However, riders should still plan food, water, and timing carefully, especially outside peak season when village services may be limited.

Route options

The loop is designed to be ridden as published, starting and finishing around Tortosa/Roquetes. The recommended itinerary is two days, which gives riders enough time to manage the climbing, enjoy the main natural landmarks, and keep a bikepacking rhythm without rushing.
A three-day itinerary is also a good option for those who want more time for photography, swimming spots, villages, or a slower bikepacking pace.
Riders using accommodation can plan stages around villages such as Horta de Sant Joan, Arnes, Beceite, Roquetes, or Tortosa, depending on pace and availability.

Terms of Use: As with each bikepacking route guide published on BIKEPACKING.com, should you choose to cycle this route, do so at your own risk. Prior to setting out check current local weather, conditions, and land/road closures. While riding, obey all public and private land use restrictions and rules, carry proper safety and navigational equipment, and of course, follow the #leavenotrace guidelines. The information found herein is simply a planning resource to be used as a point of inspiration in conjunction with your own due-diligence. In spite of the fact that this route, associated GPS track (GPX and maps), and all route guidelines were prepared under diligent research by the specified contributor and/or contributors, the accuracy of such and judgement of the author is not guaranteed. BIKEPACKING.com LLC, its partners, associates, and contributors are in no way liable for personal injury, damage to personal property, or any other such situation that might happen to individual riders cycling or following this route.