Venue

Not sure what it is? It’s not surprising; coasteering takes you into an alien environment. One minute you can be traversing across barnacle-covered ledges, and the next you find yourself diving into the sea to cross water-filled zawns! The adrenaline-filled adventure will take you from secluded beaches to smugglers’ coves and secret caves inhabited by stunning sea life. It is, unarguably, one of the coolest ways to explore the gorgeous Cornish coastline.

The ruins of a mid-16th century coastal artillery fort, later garrisoned - hence the name - by Civil War Royalists.

Although taking its name from its occupation by Royalist forces in 1651, this small artillery fort was probably built 100 years earlier, during the reign of King Edward VI (1547–53).

It was intended to protect the narrow strait leading past New Grimsby harbour and on towards St Mary’s, but proved to be badly sited to withstand attack or to fire on ships in the channel below.