Cantabria has free, open-access natural pools both on the coast and inland: from Punta Playas, near Santander, to the pools of the Pasiegos Valleys and the Deva river, in Liébana. All of them allow swimming without an entry fee, though none has a lifeguard.
Summer in Cantabria isn't just about the beach: the region has rivers and springs where the water runs cold and clean even in August, forming natural pools that have been used as the village swimming spot for generations. We've picked six, between the coast and inland areas, that meet three conditions: unrestricted public access, water with a good reputation among locals, and surroundings worth the detour from the coast. None charges an entry fee or has opening hours — you can turn up at any time of day, though the shady spots fill up fast in the middle of August.
The order follows the distance from Bareyo, from shortest to longest: it starts in Santander Bay and ends in Liébana, an hour and a half's drive away, for anyone who wants to turn the swim into a full day trip through inland Cantabria.
Punta Parayas, in Maliaño
In Maliaño, within the municipality of Camargo and just over half an hour from Bareyo, Punta Parayas is a 50-by-32-metre saltwater natural pool, with one end open to Santander Bay, near Seve Ballesteros Airport. It has parking nearby, a grassy area for lying down and picnic tables, and it's an alternative to the city beaches when the north wind churns up the open sea but the bay stays calm. It opens the list because it's the most urban and accessible of the six, with public transport reaching the area, ideal for a short afternoon without much planning. It's worth checking the tide table before going: at very low tide, quite a bit of mud is exposed around it, so the comfortable swimming window is concentrated in the middle hours of the rising and falling tide.
Parque del Camarao, in Reocín
In Villapresente, within the municipality of Reocín and about 50 minutes from Bareyo, Parque del Camarao has a natural pool formed by a small concrete dam and rock blocks on the river Saja, with green areas, swings and sports courts around it. It's a very family-friendly option: the water is dammed and calm, with no strong current, and there's plenty of grass to spend the whole day. It takes second place because it combines a swimming area and a children's play area in the same spot, something none of the others on this list do. The Reocín Town Council publishes notices about water conditions when needed, so it's worth checking before going on very hot days.
Parque de Santa Lucía, in Cabezón de la Sal
Very close to Villapresente, in Cabezón de la Sal and also about 50 minutes from Bareyo, Parque de Santa Lucía occupies a wooded meadow between the river Saja and the channel of an old mill, with a swimming area suitable for all ages. Since the two are just minutes apart, Camarao and Santa Lucía form an almost natural combined outing: one better equipped for children, the other greener and with more shade from tall trees. We've placed it third for exactly that reason, as a direct complement to the previous stop before continuing inland.
Pozas del río Miera, in San Roque de Riomiera
In the Pasiegos Valleys, about 55 minutes from Bareyo, the river Miera rises above a thousand metres in altitude and flows down forming pools of cold, clear water between San Roque de Riomiera and Miera, with pebbles instead of sand and a landscape of meadows and traditional pasiego huts all around. The water is considerably colder than on the coast, even in the middle of August, so the dip is short but you really feel it. It takes fourth place because it's the list's first genuine inland stop: Atlantic woodland, silence, and no trace of the beaches that lie less than an hour away as the crow flies. The area is also the starting point for several short hiking routes through the valley, so anyone wanting to combine a walk with a swim can do so without moving on.
Pozas de Viaña
Very close to the Miera pools, in the Viaña area within the Pasiegos Valleys, there's another stretch of the same river with slightly more secluded and less well-known pools, a good option if the San Roque de Riomiera ones are crowded on an August weekend. Access is easy from the road that runs through the valley, with parking next to the riverbed. We've included it in fifth place as a direct alternative to the previous one, not as a separate stop: same valley, same type of water, but fewer people when the rest of the Miera fills up.
Poza del río Deva, at the Balneario de la Hermida bridge
In Liébana, next to the Balneario de la Hermida bridge and a good hour and a half from Bareyo, the river Deva forms a pool between rocks that many locals call more therapeutic than refreshing: the water stays cold for nearly the whole summer, and the setting, hemmed in by the Hermida gorge, has little in common with the rest of the list. It closes out the route because it's the farthest and most different stop, meant for anyone already heading to the Picos de Europa who wants to cool off before continuing to Potes or Fuente Dé. It's not the most comfortable pool of the six, but it does have the most striking scenery.
What you need to know
None of these natural pools in Cantabria has a lifeguard, so it's worth going in carefully, especially with young children or if you don't know the exact depth at the swimming spot. Inland river water — Miera, Viaña, Deva — tends to be noticeably colder than the sea in summer, even in the middle of August, so a short wetsuit or an extra large towel won't go amiss. On July and August weekends, Camarao and Santa Lucía get the most visitors thanks to their proximity and children's areas; if you're after peace and quiet, the Viaña or Deva pools tend to be less busy. Always wear water shoes: the bottom of most of these pools is stone or pebble, not sand. In years of drought or sustained heat, some town councils publish occasional notices about water conditions at their municipal bathing spots, such as Reocín; it's worth checking the local website before heading out if you've had weeks without rain. And if the plan is to stay closer to the beach, our guide to beaches near Bareyo has alternatives less than half an hour away.
When the sea is rough or the beach fills up, Cantabria has a shady plan B: a cold river, a stone pool, and no one waiting in line.
After a day hopping between natural pools, coming back to a hot shower and a terrace to hang your swimsuit out to dry is one of those small luxuries you really appreciate. The Bareyo Residences villas are a scant half hour from Punta Playas and less than an hour from Camarao, Santa Lucía and the first stretches of the Miera, so any of these plans fit into an afternoon without an early start — even the inland ones, which involve a bit more driving. Homes with availability for September 2027 can already be viewed.
