Merlin's Cave

Merlin's Cave is a natural sea tunnel running through the base of the Tintagel headland, connecting the sheltered Tintagel Haven on the eastern side to the open sea on the west. At low tide you can walk through it, which is part of the experience — the cave is roughly 90 metres long, narrowing in the middle, with daylight visible from both ends. The rock is ancient dark slate, draped with seaweed, and the sounds of the sea fill the passage. It is atmospheric in a way that the busier castle above is not.

Access is from the beach at Tintagel Haven, reached by a steep path down from the castle approach. Check tide tables before attempting the walk-through — the cave floods at high tide. A bronze statue of the legendary wizard stands at the entrance, installed in 2016.

things to do sight nature
A story
The cave's association with Merlin is ancient, but Alfred Lord Tennyson cemented it in the popular imagination in his Idylls of the King (1859), in which Merlin finds the infant Arthur washed up in the cave at the base of Tintagel cliffs. Tennyson visited Tintagel in 1848 while working on the Idylls, and the cave's character clearly influenced his writing. Since then, the legend has grown: the cave is lit by candles in some tellings, and a ghostly figure is said to walk its length at certain tides.