The Best Sea Pools in Cornwall
A sunny day dip in Bude Sea Pool, Cornwall. Photo by Elliot Walker
There’s nothing like the salty, skin-tingling thrill of plunging into a sea pool on a hot summer’s day. And from natural tidal pools to man-made swimming holes, Cornwall’s got plunge pools aplenty to seek out on your summer adventures.
Whether you’re after early morning solitude or family sea dips, pack your swimmers and dive into our guide to Cornwall’s best sea pools – from hidden gems near Padstow to sea-filled lidos in Penzance.
Come on in, the water’s lovely.
Sea Pools Near Padstow
Treyarnon Bay Tidal Pool, Treyarnon
Just a few miles from Padstow, Treyarnon Bay is a sweeping sandy beach boasting a natural 12-metre-long rock pool hewn into its rocky edges. Wait for the tide to ebb and it’s fairly easy to descend the cliff and plunge into the cool embrace of this lozenge-shaped lagoon much-loved by families, dogs and regular sea swimmers. Once you’ve done a few laps you can warm up on the sun-heated rocks, or make haste to the nearby YHA café for coffee and cake.
Trevone Tidal Pool, Trevone
Known locally as Tinker Bunny’s Bathing Pool, or Trevone Mermaid Pool, the 25-metre Trevone Tidal Pool provides a glorious bathing spot on the edge of the waves. While the powder-white sands of Trevone Bay beckon surfers into the Atlantic swells, follow the coast path west just around the corner to Newtrain Bay, where you’ll find the sea pool. Here you can swim laps with a view of the waves, and children can splash in the shallow paddling pool. It’s a popular spot with the local sea swimming community, who came together to repair the sea wall in 2013. Pack a picnic and bask on the rocks afterwards, stroll further along the cliff tops to watch saltwater explode from an 80-foot blowhole, or head back to the beach café for food and drink.
Sea Pools in North Cornwall
Bude Sea Pool, Summerleaze Beach, Bude
Bude Sea Pool, Cornwall. Photo by Elliot Walker
Whether you’re looking to clock serious laps in a sea pool, or simply float in safe, saltwater bliss, grab your goggles and head north to Cornwall’s largest sea pool. Created in the 1930s as a safe haven from the pounding surf, Bude Sea Pool is nearly 100m long, providing a glorious, free, saltwater swimming pool for serious swimmers and dippers all year round.
Porthtowan Tidal Pool, Porthtowan
Ocean therapy doesn’t get any more exciting than head-to-toe immersion in this shimmering pool beneath the cliffs at Porthtowan. Tucked away in a rocky gully at the north of the beach, it’s only accessible at low tide, and takes a little seeking. One for adventurous souls, it’s an incredible spot to float in emerald waters while the ocean crashes against the sea wall. And once you’ve dried off, warm up in the legendary beachside Blue Bar.
The Tidal Baths, Portreath
Tucked into the edges of Portreath Beach, at low tide you’ll find a series of small bath-shaped hollows that were carved into the rocks in the 19th century for Lady Basset, who stayed in her summer house nearby. Lady or not, they still make a whimsical spot for a sunny-evening plunge and sundowner. Prefer a little more space to float? Head to the larger pool at the base of the harbour wall – rumoured to have been blasted into the rocks by a band of industrious locals.
Chapel Rock Tidal Pool, Perranporth
This file is licensed under the Creative Commons. Image by Fossick OU
Well known for its surfing treasures, Perranporth hides a dreamy little saltwater pool in the iconic Chapel Rock that stands sentry beside the waves. Refreshed by the incoming tide and warmed by the sun, it’s not only an idyllic saltwater pool, but also a giant rockpool where you can discover the likes of blennies, anemones and crabs. After your dip, skip across the sand to The Watering Hole for a warming tipple with your toes in the sand.
West Cornwall Sea Pools
Mermaid Pool, Kynance Cove
The Lizard Peninsula’s Kynance Cove is one of Cornwall’s most photographed beaches, and a must-visit on any Cornish holiday. But what’s the secret to avoiding the crowds in summer? Go early, on a big low tide. Then seek out this turquoise tidal pool near Asparagus Island for a summer dip and dreamy views. By the time the bus-loads arrive, you’ll have had the best of Kynance Cove to yourself and be ready to fuel up in the beach café.
The Children’s Pool, Priest’s Cove, Cape Cornwall, St Just
If you want to venture out and discover a remote, end-of-the-world location for a wild saltwater dip in a safe haven, this is it. This magical, man-made tidal pool was built in the 1950s so that the fishermen’s children could play safely on the wild coastline ravaged by swells. Wait for the tide to ebb and make sure it’s clear of surging waves, and there isn’t a more divine dipping spot in all of Cornwall.
Mousehole Rock Pool, Mousehole
Photo courtesy of Friends of Mousehole Rock Pool
Small but beautiful – much like the village itself – Mousehole’s tidal pool is perfect for gentle dips and family paddles. Once you’ve wandered the twisting alleyways lined with whitewashed cottages, and explored the dinky harbour, there’s nowhere lovelier to cool off. Created in the 20th century for local children to learn to swim safely, it remains a picture-perfect spot for a dip, a paddle, and a bit of rockpooling.
Sea Pools in Southeast Cornwall
Chapel Pool, Polperro
Nestled into the rugged coastline, Chapel Pool is tucked into the historic terrain of smugglers and fishermen. Just getting here on foot via the narrow streets of Polperro, designed for horse and cart, takes you on an adventure back in time. The smugglers’ booty has long gone from the nearby sea caves, but while you swim, you can enjoy the treasures of the amethyst-hued rocks, glistening shells and velvety seaweed. Still a secret spot despite the popularity of Polperro, the descent is marked by a metal railing just past the 16th-century Blue Peter Inn – a lovely spot for a post-dip pint and a warming fish stew.
Millendreath Sea Pool, Nr Looe
Photo courtesy of visitlooe.co.uk
Just a couple of miles from the buzzing seaside resort of Looe, Millendreath Beach is a family-friendly haven with a man-made sea pool. Framed by a 20th-century concrete pier and a retaining sea wall, and bordered by beach and cliffs, with a drain at the seaward end, it’s the perfect pool for young children to splash around safely.
Jubilee Pool, Penzance
Image courtesy of Jubilee Pool
This iconic Art Deco sea pool is made for sun-soaked summer days and dips. Filled with saltwater and set right beside the sea, it brings all the joy of wild swimming with a little extra comfort. Cool off in the main pool, warm up in the geothermal pool, then bask on the terraces with a view of Mount’s Bay.
Cornwall Sea Pool Safety Tips:
Time it with the tides: Most tidal pools are not accessible at high tide or dangerous as they are being refilled by the incoming swell.
Buddy up: It’s safer, and more fun to swim with a friend.
Bring grip: Wet rocks can be slippery; trainers are better than flip-flops.
Warm up: Pack a robe, warm layers, and hot drinks to avoid chills the post dip.
Check the weather: Never swim in a storm.
Ready for Your Summer Dip?
From nearby Treyarnon and Trevone pools to hidden gems in West Cornwall, and even art‑deco lidos at Penzance, Cornwall is full of saltwater sanctuaries waiting for you. Dip in, dive deep, and rejuvenate this summer.
Book your Harbour Holidays cottage now and make 2025 your year of wild-swimming adventures.
