The Seven Bays · Treyarnon Bay
Treyarnon Bay’s famous rock pool
A sheltered, sandy cove with a celebrated natural tidal pool, caves to explore and a reef break for the experienced — a short drive from the park, close to St Merryn.
- Surf level
- Experienced — reef break
- Family
- Great at low tide
- From the park
- About a 10-minute drive
- Best at
- Low tide, for the rock pool
A cove of two halves
Soft sand, a famous rock pool and a proper reef break
Treyarnon is one of the prettiest of Cornwall’s Seven Bays — a sheltered cove of golden sand tucked between low headlands, just along the coast from Constantine and Booby’s Bay. At high water it’s a calm crescent for a swim; as the tide drops it reveals far more.
The bay is best known for its natural tidal rock pool — a deep, sea-filled basin set into the rocks at the northern end of the beach, a favourite spot for a sheltered wild swim once the tide is out. Around it, caves and rockpools open up for little ones to explore. For surfers, the reef here produces good waves, but it suits the experienced rather than first-timers.
Is it right for you?
Surf level and who’ll love it
Treyarnon rewards a bit of timing — check the tide before you set off and you’ll get the best of it.
Surfers
Surf: experienced — reef break
The reef here can throw up quality waves, but it’s exposed and best left to confident, experienced surfers who know how to read it. Beginners are better starting with a lesson at nearby Harlyn or Polzeath.
Families
Family: great at low tide
When the tide’s out, the cove is wonderfully family-friendly: soft sand to dig in, the famous rock pool for a sheltered dip and plenty of rockpools and caves to comb through for crabs and shells.
Walkers & swimmers
Coast path & wild swimming
The South West Coast Path runs right above the beach, linking Treyarnon to Constantine one way and toward Porthcothan the other. The tidal pool is a draw for wild swimmers when conditions allow.
Facilities & getting there
Good to know before you go
Treyarnon is a quieter, more natural cove than some of its neighbours — there’s a YHA hostel perched above the beach, but it’s a place for the sand, the sea and the rock pool rather than the amenities. A few practical notes:
- Time your visit to low tide — the rock pool, caves and best rockpools only appear once the sea draws back.
- Take care on the rocks — they can be slippery, and the reef and currents make it a beach to respect.
- Dogs — there are dog-friendly beaches nearby; seasonal restrictions can apply on the busier sands over the main season, so check local signage on the day.
- Natural tidal rock pool
- Caves & rockpools at low tide
- YHA hostel above the beach
- Beach café & food van in season
- South West Coast Path access
- Beach car park above the cove
From your pitch to the sand
A short drive from the park
Atlantic Bays sits in the countryside at St Merryn, roughly ten minutes’ drive from the Seven Bays coast. Treyarnon is among the closest of the bays to the park, so it’s an easy before-breakfast surf check or an afternoon by the rock pool.
Prefer to leave the car? The South West Coast Path links Treyarnon with Constantine, Booby’s Bay and the wider stretch toward Trevose Head — so you can string several bays together on foot.
Nearby on the coast
More of the Seven Bays
Treyarnon links to its neighbours along the coast path. A few within a short drive of the park:
Constantine Bay
The next bay north, with wide-open Atlantic surf and dunes behind.
Harlyn Bay
Sheltered, gentle waves and a long-running surf school for beginners.
Trevone Bay
A family bay with a natural tidal swimming pool and a clifftop blowhole.
Stay here to explore
Wake up minutes from Treyarnon Bay
Base yourself at Atlantic Bays and the rock pool is a short drive away — in a lodge, a cabin or your own pitch. Check live availability for your dates, or call the team and they’ll help you find the right stay.