Get hold of 'The Marazion Trail' or if with children 'The Marazion Treasure Trail' (both available online at small cost) and go explore the hidden gems. Can't recommend the Kings Arms highly enough - book a table for best service; Phillips pasties are great for a picnic (or any time before 4pm) and Cobble Corner is good for that bottle of wine you forgot to get and a loaf of bread.
If you can find a parking space and are prepared to be a bit adventurous with the wheelchair; Marazion is not bad for a short trip. The museum was fun even if it did have stuff that I remember using. The galleries are interesting although one in the square was a bit sniffy at us going in, we obviously did not look like paying customers. Something that you should never do as a shop owner. The Delicious Cafe, just past the church is well named and good value. The Out of the blue Gallery was full of delectable things. A very enjoyable afternoon spent there.
Lovely little town with some great galleries (though some only open in the afternoon!), tea shops, bakery for pasties and cream teas, interesting museum and pub. Also useful post office for cash withdrawal and chemist. Shame about the smell of the nasty green seaweed that occasionally hits this part of the coast when the conditions are just right - or should I say 'wrong'! Potent waves of nauseous raw sewage odour come and go. Fortunately, we're told this is unusual and just happened to be the week we were staying there!