The Lamma Quarry is located in Luk Chau Wan on the north side of Sok Kwu Wan covering about 49 hectares and stretching across 1 km of coastline. The Quarry started operation in 1978. Rehabilitation works started in 1995 and were completed in 2002.
The rehabilitation works involved developing a self-sustainable ecosystem similar to the surrounding area. An artificial lake, covering an area of 4 ha was developed on the coastal side of the site. It is now proposed as a site for recreation and commercial development.