We visited on July 19, 2013 and arrived at around 11 am. Charge you 3 Pound for parking. We were lucky to be able to cross the passage way with the flood just coming in. Took the boat for the return at 2 Pound per person.
You must see St Michael's mount which I was surprised to find in such good condition for a building that age. Rooms are partly overflowing with people...... Make sure to visit the garden also even at the extra charge - we had National Trust Touring Pass and got in for free
If you own or manage St. Michael's Mount, register now for free tools to enhance your listing, attract new reviews, and respond to reviewers.