Walking the causeway

At low tide, when the boats are not running, you can use the ancient causeway to walk across to the island. Step onto the cobbles and tread a path followed by pilgrims, traders, nobles and villagers over many hundreds of years. The causeway is cobbled, uneven and tricky to navigate, please check our accessibility information before you visit. For your own safety, please be aware that attempting to cross the causeway outside of the suggested times can be hazardous. When the causeway is submerged, it can limit visibility, the path is uneven, there can be strong currents and the sea rises quickly.

15:45 is the last entry time onto the island.

Planning a visit to St Michael's Mount? Book your tickets online and save with the Advance Booking Rate.

When can I use the causeway?

At high tide, the sea covers the causeway and boats are in operation. At low tide, the causeway is revealed and visitors can stroll across and back. The causeway is open for around four hours each day, depending on the tides and weather.

You’ll need around 15 minutes to walk the length of the causeway.

When do I get a boat?

If the causeway is covered at the time of your visit, hop on a boat to discover the ultimate way to arrive or depart from the island.