Blackers Hole contains some of the greatest challenges available to climbers along Britain\'s south coast, and for most the view of the Great Cave\'s twenty five metre roof comes as a shock to the system on first acquaintance. This vast cavern provides the setting for cutting edge routes such as Infinite Gravity and Endeavour. Further east the cave gives way to slightly less-steep territory on its left-hand side, but the base changes from boulders to sea, making access difficult and the climbs even more adventurous. It is here that a number of long and difficult trad adventures wend their way, with the likes of Polaris and The Aquatic Ape being amongst Swanage\'s most serious undertakings. However, there is more on offer here, in the shape of roof-based sport routes in the quarry, and some secluded (though accessible) trad routes on the shorter walls to the east of the Great Cave.