Daymaniyat Islands

Diving here is day-boat work off the Muscat coast. Centres leave the marinas early, run two dives with the surface interval spent in the lee of an island, and are back alongside by early afternoon; longer trips add a third tank or a night dive. Because the islands are a protected reserve, operators arrange the entry permits and tie to moorings rather than dropping anchor on coral. What cancels a day is wind and swell rather than the calendar, and the June-to-July lull owes as much to heat and rough water as to what the reef is doing.

The islands sit in three loose groups and each has a sheltered face and an exposed one, which is how the day's sites get picked. Southern sides are gentle: coral shelves in easy depths, sand patches between them, and enough shallow ground to spend most of a dive above the thermocline. The outer and northern faces take more water and are built of bigger boulders and short walls, cut through with passages wide enough to swim rather than squeeze. Current is generally mild, so the difference is swell and light more than drift.

The appeal is less spectacle than the effect of protection. Fishing is restricted inside the reserve and it shows in behaviour: turtles that carry on grazing while you hang above them, snapper stacked under the rock instead of scattering, eagle rays crossing open sand without hurrying. Add warm water, forgiving depths and a crossing measured in minutes, and it becomes an easy few days to fold into a wider trip through Oman — a place to build dives on rather than survive them.