In one sentence: Pozo del Arco is the prettiest river beach on the Sella — crystal-clear waters, fine gravel, a natural rock arch — and it appears at kilometre 3.5 of the descent, between Arriondas and Toraño. A mandatory stop on both the Mini Sella and the Full route.
If you have ever seen a photo of the Sella descent where the canoe seems to float on turquoise waters, with polished rocks at the bottom and riverside shade, there is a high chance it was at Pozo del Arco. It is, without dressing it up, the most visually spectacular stop of the route and the reason many customers ask us "we'll go back to that pretty area, right?" before even launching.
What it exactly is
Pozo del Arco is a natural river beach with two features that make it different from the rest of the river:
- A rock arch carved into the bank by water over centuries — visible from the river, very photogenic.
- A deep pool where the channel widens and the river slows, allowing the bed to settle into fine sand and clear gravel.
The result is a spot with transparent water (you can see the fish), a comfortable bottom for walking without harm, and natural shade from the riverbank. In summer the water warms enough to swim without thermal shock — between 18 and 22 °C in July and August.
Where it sits on the route
Pozo del Arco is approximately at kilometre 3.5 from the Arriondas launch, that is, in the first half of the Mini Sella and in the first quarter of the Full route. You can see it on the general route map at route and map.
You will reach it in around 40–60 minutes from the launch at a normal pace, sooner if you paddle keenly. You will recognise it because the right bank opens into a wide clear-gravel beach, with the rock arch rising above the water. Most canoes stop there; it is hard to miss.
What to do when you arrive
Four plans that repeat themselves every afternoon on the Pozo bank. You set the pace.
Swim
The pool has enough depth to dive from the low rocks. Kids splash near the bank. Life jacket on at all times · descent rule.
Take photos
The rock arch is the postcard. Early-hour light (before 12:00) draws the walls; from 16:00 the valley turns golden.
Eat the picnic
Perfect spot to open the Asturian picnic · tuna pie, traditional bun and water. Towel on the gravel, tree shade, river in the background.
Rest your arms
The Sella is not demanding, but half an hour here and you return to the canoe with renewed energy for the second half.
Pozo del Arco is what turns a "canoe outing" into "a day I will remember". No need to explain much more when you arrive: you will get it as soon as you step out.
The best time to stop
In peak season (July/August), Pozo del Arco fills up between 12:30 and 14:00 — coinciding with canoes that left mid-morning. If you want it less crowded, two strategies:
- Arrive at the start of open hours (10:30) → you reach the Pozo around 11:30, almost to yourself.
- Arrive at closing time (12:30) → you pass the Pozo around 13:30-14:00, fewer crowds and afternoon light on the second half of the route.
We explain it in detail in the best time of day for the Sella descent: Pozo del Arco is one of the factors that can tip your decision toward one slot or another.
House tips
- Enter on the right. The stop is made by landing the canoe on the gravel beach on the right bank. Step out slowly, stones can be slippery.
- Watch the flip-flops. More flip-flops are lost at Pozo del Arco than at any other stop on the route. Footwear with a strap prevents disaster.
- Sun cream before swimming. If you return to the canoe with freshly applied cream, your shoulders thank you for the next hour.
- Respect the place. No waste, no fires, no taking stones as "souvenirs". We keep it this way together.
- If you are with a dog, it is one of the best stops for them to cool off. Bring the bowl and watch they do not drink river water — more details at Sella descent with dog.
Pozo del Arco and the Sella
The Sella has many river beaches and quiet pools along its 14.5 km of descent — each with its own character. Pozo del Arco is the most iconic, but not the only one. Along the route there are other stops worth considering at a calm pace, and several of the riverside snack bars are right by these tranquil zones.
And if you are interested in historical context, this same stretch of the Sella is part of the route of the International Sella River Descent, the century-old canoeing event declared an International Tourist Interest Festival. We cover it in another article: history of the Sella descent since 1929.
Quick summary
- What it is: natural river beach with rock arch + deep pool.
- Where: km 3.5 of the descent · right bank.
- When you will reach it: 40–60 minutes from the Arriondas launch.
- When to arrive: open hours 10:30–12:30 · arrive early for a quieter Pozo.
- Typical stop: 30–60 minutes.
- Essentials: life jacket on, sun cream, footwear with a strap.
It is one of those places that justifies the day even if everything else were average. And if everything else goes well — which is the norm — you finish with the "we got lucky" face we see at the desk every afternoon. Pick a date in the calendar and plan the descent at a calm pace: Pozo del Arco deserves a pause, not a rush.
What you ask us most
- Where is Pozo del Arco and how do you get there?
Pozo del Arco is on the Sella River, between Arriondas and Toraño, approximately 3.5 km from the start. You reach it by canoe during the descent — there is no direct public road access from the bank, which is what keeps it so authentic. It is part of the Mini Sella and Full route.
- Why is it called Pozo del Arco?
For a natural rock arch carved by the river's course on the bank — a curvature shaped over centuries by the water. The riverbed also has a deep pool (the "pozo") where the current slows, creating crystal-clear waters that warm up in summer. The combination of rocky arch and tranquil pool gives it its name.
- Can you swim at Pozo del Arco?
Yes — it is one of the best spots for swimming. The water is crystal-clear, with a fine gravel and sand bed, and the pool has enough depth to dive in from the low rocks. In July and August it is the queen stop of the descent. Even so, always with your life jacket on and keeping an eye on the kids.
- How long can you stop at Pozo del Arco?
As long as you want within the descent's margin. Most people stop between 30 and 60 minutes — enough for a swim, photos and some picnic. If the pace is relaxed it can be longer, bearing in mind the full route must be completed before the transfer cutoff.
- Is Pozo del Arco safe for children?
Yes — it is one of the most family-friendly river beaches on the entire Sella. The bank has a gentle access, the water becomes deep gradually and the current is very mild. With life jackets on and adult supervision, kids enjoy it like a natural pool. More context in Sella descent with kids.
- Can you visit Pozo del Arco without doing the descent?
Not with easy access. The real and accessible way to reach Pozo del Arco is by canoeing down the Sella. That is precisely one of its charms: it is a place you earn during the descent, not an overcrowded swim zone with a car park next to it.
