Alderney's second nature reserve was established by a memorandum of understanding between the Trust, the States of Alderney and two private land owners in 2004. The reserve covers an area of 7 hectares consisting of coastal cliff top woodland valley habitats.

A variety of migratory birds including birds of prey are often spotted within the reserve as well as the island's only reptile the slow worm. Many important insect species are found here also.

The reserve also holds host to the Trust's Countryside Interpretation Centre (the 'Wildlife Bunker'), which is located on its eastern edge, within the two-metre-thick walls of a World War Two German bunker. This Bunker contains information and displays on the island's military and wildlife history.