Grotto Bay is a coastal private property[2] in West Coast District Municipality in the Western Cape province of South Africa.

Retrieved 9 January 2023.Grotto Bay forms part of the Cape West Coast Biosphere reserve which was proclaimed by UNESCO in 2000.

All Biospheres promote a balanced approach to the development of humans and the preservation of biodiversity in a particular region.

The aim of the Cape West Coast Biosphere is to foster human development that is ecologically sustainable, conserve the landscape, vegetation and living species.

It also support the research, monitoring, education and information exchange related to local, national and global issues of conservation and development.