Llantwit Major is a beach of shingle, rocks and sand at the end of the Col-huw valley. The surrounding cliffs are made up of alternating layers of limestone and shales, and are very unstable. The main car park overlooks the shore, with further parking available on grass in the valley behind. Beach facilities include picnic tables, cycle stands, toilets and a cafe.
A dog ban operates from 1st May to 30th September, and RNLI lifeguards patrol during the school summer holidays. It's a popular spot for windsurfing and surfing, working best at low to mid-tide, but due to rocks, rip currents and a hint of localism, it's not ideal for beginners. Half a mile to the east is a good place for fossil collecting - gastropods and gryphea being common finds.
Llantwit Major village is just under a mile away and has cafes, pubs, shops, a sports centre and a railway station. Parking at both the village and beach is free.