La Reina is a boat-access rocky site in the Medes Islands reserve. Despite the name, it is a shallow rock formation rather than a true cave, with a sheltered bay start that opens onto limestone reef, broken rock, corals and gorgonians, and pockets where groupers and other reef fish gather. Plan it as a guided calm-day dive: the site is straightforward when the sea is settled, but the shallow top can still pick up surge near the bay exit.