Boulders Beach is a sheltered beach made up of inlets between granite boulders, from which the name originated. It is located on the Cape Peninsula, in Simon's Town in the Western Cape province of South Africa. It is also commonly known as Boulders Bay. It is a popular tourist spot because of a colony of African penguins which settled there in 1982. …Boulders Beach is a sheltered beach made up of inlets between granite boulders, from which the name originated. It is located on the Cape Peninsula, in Simon's Town in the Western Cape province of South Africa. It is also commonly known as Boulders Bay. It is a popular tourist spot because of a colony of African penguins which settled there in 1982. Boulders Beach forms part of the Table Mountain National Park.