St. Agnes is more of a self-contained island, with sandy beaches and rugged coves.

There are ancient standing stones and burrows, an ancient maze and a lighthouse on the island.

There is a large natural lake and the island has many coastal and criss cross paths. The island is very popular with bird watchers, particularly in the late summer and the autumn.

As excellent spot for beaches and views is the sandbar, which connects St. Agnes to the Island of Gugh which can be reached on foot at low tides.

There is also a local pub, stores and cafes available for refreshments.