Ilhas Tijucas is an island in Rio de Janeiro, Brazil, situated between Ilha Alfavaca and Ilha do Meio, and nearby to Ilha Pontuda. Ilhas Tijucas, consisting of three islets and several rocks whose least known depth is 2m, and are located about 1 mile S and SE of Cabo da Gavea.
Mariners are advised to navigate in depths no lower than the 20m curve when transiting this area.
A channel runs between the islets and the coast. Vessels using this channel should keep near Cabo da Gavea, which is steep-to.