The horseshoe-shaped Castletown Bay, is a mixture of sandy stretches and pebbly coves.
The beach is a favourite among watersport fans, and the bay offers great windsurfing conditions. When there is a big swell, it’s common to see brave surfers tackling the big waves on the outside of the harbour.
The shore is also a great spot for walking.
Further smaller beaches and coves can be found in the areas around Derbyhaven, and at Scarlett.
Scarlett is also a brilliant spot for fossil hunting. The preserved forms of ancient creatures called Crinoids, which are related to starfish, can be found in many of the limestone rocks.
The area is also of interest to geologists and it’s easy to find evidence of ancient volcanoes, with solidified lava flows and volcanic rocks.