praia de dentro, also known as prainha do forte is a small beach located inside the forte do são joão, in the district of urca. accessible via special permit only, this beach is geographically similar to praia da urca, 130 meters in length, with and calm waters and offering spectacular views of flamengo, botafogo, and the corcovado.

special authorization to visit praia de dentro and the nearby  praia de fora can be requested  at the fortaleza de são joão, avenida joão luiz alves (no street number), urca  by calling 21 2586.2291 - authorization can also be requested via email on this link.