St Michael's Mount Tickets: What to Know Before You Go

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St Michael's Mount is one of Cornwall's most photographed sights: a medieval castle and church crowning a tidal island in Mount's Bay, reached on foot across a granite causeway at low tide or by ferry boat when the tide comes in. Before you plan a visit, there's one thing worth knowing up front, because it trips up a lot of people: castle and garden admission is sold only through the official website, on timed-entry slots. There is no "skip-the-line" ticket and no valid third-party entry pass. This guide explains how it actually works.

Where it is

St Michael's Mount is a tidal island off Marazion, Cornwall (TR17 0HS), roughly 3 miles east of Penzance. You reach it on foot via the granite cobbled causeway from Marazion at low tide, or by ferry boat from Marazion when the tide is in. It's a National Trust property, managed jointly with the St Aubyn family, who still live there.

What to see

• The medieval castle and church crowning the island in Mount's Bay, still home to the St Aubyn family.
• The sub-tropical terraced gardens clinging to the granite slopes, available on a separate or combined ticket.
• The dramatic tidal causeway you can walk at low tide, with ferry boats running when the tide is high.
• The setting itself: a working National Trust property with centuries of history, managed alongside the family who call it home.

Getting your ticket

Castle and garden admission is sold only through the official site, stmichaelsmount.co.uk. Entry runs on timed slots, and booking in advance earns a discount over paying on the day. Importantly, even National Trust members need to reserve a free timed slot online before arriving, so nobody should turn up expecting to walk straight in.

Because entry is official-site only, any "ticket" sold by a third party for the castle or gardens is not valid, and buying one risks being refused at the door. If you see St Michael's Mount listed on a booking platform, look closely: what's usually offered is an external boat trip or an area day-tour around Marazion and the coast, not admission to the island itself. For entry, book directly with the official site and nowhere else.

Insider tips

• Check the tide times before you travel. Access is tide-dependent: you walk the causeway at low tide, or take a ferry boat when the tide is in. Ferries operate roughly April to October.
• Book your timed slot ahead. It's cheaper than paying on the day, and members still need to reserve a (free) slot.
• Decide on the gardens in advance. Garden access is a separate or combined ticket, so choose before you book.
• Wear sturdy footwear. The causeway is granite cobble and the castle sits on a steep granite slope.

Is it worth it?

For most visitors, yes. Few attractions combine a genuine medieval castle, sub-tropical gardens and a tidal-island approach you cross on foot. The one thing to get right is the logistics: book your timed entry on the official site, and plan your arrival around the tide so you're not caught out by the causeway being underwater. Get those two things sorted and it's a memorable day out.

FAQs

Where do I buy tickets for St Michael's Mount?

Only from the official website, stmichaelsmount.co.uk. Castle and garden admission runs on timed slots, with a discount for booking in advance. Third-party "tickets" are not valid and can be refused at the door.

Do National Trust members need to book?

Yes. Even National Trust members must reserve a free timed slot online before visiting, so it's worth sorting your slot before you set off.

How do I get across to the island?

It depends on the tide. At low tide you walk the granite cobbled causeway from Marazion; when the tide is in, a short ferry boat runs (roughly April to October). Always check tide times before travelling, as causeway access is tide-dependent.

📷 Photos via Wikimedia Commons

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