Lembeh Strait

A day in the strait runs on a short leash. Resorts line both shores and the sites sit close enough that the boat is back at the jetty a few minutes after the safety stop, so the pattern is three or four dives spread across the day with long surface intervals for downloading images and changing lenses. Groups are kept small, and the working method is that a guide marks a find and then holds position while each diver in turn settles, frames and shoots it. Briefings deal less with navigation than with a target list, and dives usually end on air rather than at any fixed turnaround.

The seabed does all the work here, and the differences between sites are matters of texture rather than scenery. Some are open black sand where the interest is in whatever has buried itself. Some are rubble fields littered with coconut husks, bottles and tyres that shelter juvenile fish and cephalopods. Some carry patches of hard coral and a short drop, with gorgonians that hold pygmy seahorses. Jetty pilings and the shallows under moored boats form a category of their own, since fixed structure in a sand channel collects what open bottom does not.

The dives people remember are the ones timed to the light. At dusk the mandarinfish rise out of the rubble for a short courtship window, and guides plan the entry around that rather than around the tide. After dark the same slopes change hands completely, with hunting cephalopods, ambush predators and burrowing oddities replacing the daytime cast. Photographers on a week-long stay tend to build the schedule around the dusk and night slots and treat the daylight dives as search time for the next subject.

The skill that matters is buoyancy rather than fitness or nerve: holding position just off the sand without stirring it into the frame is most of the job, and a full tank can go on a few square metres of bottom. That makes a week here a photographer's week more than a mixed group's, which is why most operators sell it in combination with the Bunaken walls at the other end of the road transfer, and why a non-photographing partner usually does better on the split itinerary than on seven days of sand.