Stair Hole, to the west of Lulworth Cove, Dorset is a small natural cove with arches cut into Portland and Purbeck limestone. The sea enters through these arches, giving a ‘whirl pool’ feel to the cove as the waves erode the softer parts of the Purbeck limestone. Multicoloured strata can be seen down the left hand side giving a rare cross section view of the Lulworth crumple. Though quite precarious to reach down a fairly steep cliff, the effort is well worth it for the stunning natural beauty of this spot, which attracts coastal base-jumpers, known as ‘Coasteers’ due to its scaleable walls and watery depths. If you are up for a bit of adventure, this is certainly a good spot. The current and swells can be quite strong, so be sure to take the necessary safety precautions and shore cover before entering the water.