Visiting St Michael’s Mount

St Michael’s Mount runs on the tide’s schedule, not yours, and that’s most of what you need to understand before you go. Get the timing right and it’s one of the most memorable short trips in Cornwall.

The Causeway & Tides

Can you walk across to St Michael’s Mount for free?

Yes, walking the cobbled causeway itself costs nothing. You only pay to enter the castle and gardens, or for the ferry if you need it when the tide is in.

How long is the causeway open each day?

Roughly two to five hours around each low tide, though this varies daily. Always check the current tide times before you set off rather than guessing.

How long does it take to walk across the causeway?

About 10 to 15 minutes at a normal pace, though the cobbles can be slippery and uneven, so it’s not a route to rush.

How deep does the water get over the causeway at high tide?

Sea height can vary by up to around 5 metres between low and high tide here, more than enough to fully submerge the causeway, which is exactly why timing your crossing matters.

What happens if you get stranded on the island by the high tide?

You’re not actually stranded, the ferry runs between the island and the mainland whenever the causeway is covered, so you simply take the boat back instead of walking.

How do you get back from the island when the tide is in?

By the small passenger ferry, which runs from the island’s harbour back to Marazion whenever the causeway is underwater.

Is there a boat ferry operating all year round?

The ferry runs whenever the island is open and the causeway is covered, though winter opening is more limited, so check current seasonal opening before you visit outside the main season.

Does the boat ferry charge per person?

Yes, the ferry crossing is charged separately from castle and garden admission, so factor it in if you’re planning to visit when the tide is in.

Is it safe to cross the causeway in stormy weather?

Not always. The island occasionally closes entirely in bad weather, and the causeway can be genuinely hazardous in storms even outside official closures, so check conditions before you set off.

Is the walk suitable for pushchairs or wheelchairs?

The cobbled causeway is uneven and genuinely challenging for wheels of any kind, so it’s worth planning carefully and checking current accessibility information if this affects your visit.

The Castle & Island

Is the island managed by the National Trust?

Yes, since 1954, when the 3rd Baron St Levan gifted most of the island to the National Trust along with an endowment to fund its upkeep.

Who lives in the castle on St Michael’s Mount?

The St Aubyn family, who have lived there since around 1650. Despite the 1954 gift to the National Trust, the family retained a 999-year lease to live in the castle, and they still do today.

Are there places to eat on the island?

Yes, cafes and a restaurant operate in the harbour village, serving everything from quick snacks to a proper sit-down meal, alongside seasonal pop-ups.

Are the subtropical gardens on the mount always open?

No, the terraced garden has its own more limited opening days, typically spring through early autumn, separate from the castle’s opening schedule. Check current opening days before planning a visit specifically for the garden.

Can you get married on St Michael’s Mount?

The island has hosted private events over the years, though availability is limited given it’s a family home as well as a visitor attraction. Enquire directly with the Mount for current options if this is something you’re considering.

Planning Your Visit

How much does it cost to enter the castle and gardens?

Pricing changes periodically, so check the current St Michael’s Mount website for castle, garden, and combined ticket prices before you visit.

Can you book tickets in advance, or do you buy them on arrival?

Both are usually possible, but booking in advance online is recommended, particularly in peak season, to avoid disappointment if capacity is limited on the day.

Can you take dogs onto St Michael’s Mount?

Assistance dogs are welcome, but general pet dogs are typically not permitted into the castle and garden areas. Check current visitor guidelines directly before bringing a dog.

How long does a typical visit to the island take?

Allow two to three hours to see the castle, garden, and village properly, longer if you’re planning lunch or a slower wander, plus time either side for the crossing.

When is St Michael’s Mount closed to visitors?

Parts of the island close over winter, and the whole site can close occasionally due to bad weather. Always check current opening days before travelling, especially outside the main spring-to-autumn season.

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