Dahlak Archipelago

Trips sail from Massawa on the boat that is also the hotel, carrying their own compressor, fuel and food, and each morning's plan bends to the wind and to which islands the paperwork actually covers. Days are unhurried: a couple of dives from a tender onto shallow reef, long flat-water surface intervals between low sand islands, no second wave of boats waiting on the mooring. Help is a long way off in any direction, so sensible operators keep profiles shallow and conservative and treat the printed itinerary as provisional.

The archipelago sits on a broad, shallow shelf rather than at the edge of a wall, which makes it feel nothing like the northern Red Sea. Expect fringing reef around the islets, coral heads scattered on sand, seagrass flats and tidal channels between the islands: gentle terrain in the 5-30 m band where the interest is what lives there rather than the structure. Visibility runs roughly 5-20 m and swings with tide and wind, and the water stays warm well into the season, so plan for close-focus photography over sweeping reefscapes.

Old hulls lie in the shallows near some anchorages, a legacy of the port's long military history, but the names attached to them locally are often unverified, so treat any identification as provisional. Ashore, the islands are low scrub and sand with scattered fishing settlements and nothing built for visitors; landings depend on what a given permit allows. There is no re-supply once the boat sails, so spares, batteries, medication and cash all have to come aboard with you.