Marazion is an official bathing spot in Cornwall with a sandy shore. Its water quality was classed Excellent at the Environment Agency's last classification. Water quality here can dip after heavy rain. It is one of 90 bathing waters in the county.
The closest station is Penzance, 3.7 km to the west. Long Rock and Perranuthnoe are among the bathing waters within 3.2 km.
