This highly recommended operator and dive centre can organise all kinds of tours throughout the country, on land and at sea, including diving and snorkelling trips, whale-shark spotting outings (between November and January), excursions to Lac Abbé and Lac Assal, as well as live-aboard dive boats to Gulf of Tadjoura and Les Sept Frères archipelago. It's staffed with qualified instructors who speak English.

Dolphin's live-aboard dive trips come highly recommended. Trip lengths vary from two to eight days and usually include Les Sept Frères archipelago.