Considering the Blue Lagoon in Mauritius?
A VT member wrote the following comment about visiting Mauritius:
Ile Aux Cerfs by victorwkf
This is a very nice island located off the east coast of Mauritius and famous among tourists. It can be reached from a short boat ride from Mauritius and is famous for its clean and fine sand, as well as a natural lagoon with very shallow and clear waters protected from the ocean waves.