Describes Iuias in the outer sea with about 8-24 m depth and highlights the rock formations, sponges, corals, narrow fissures, and colorful marine life.

States that outer-sea scuba spots including Iuias are best from March to May and that scuba operations run from boats at predefined locations.

Lists Iuias among the scuba sites in the Fernando de Noronha protected-area system.