Apo Reef

Nothing about a dive day here is casual. Boats leave Sablayan on the Mindoro coast early and spend a couple of hours crossing open sea, so a single-day trip is a long, weather-dependent affair built around two or three dives and a break ashore. Most divers take two or three nights instead, camping on the islet by the ranger station or joining a liveaboard on the Puerto Galera-to-Coron run, which puts the boat on the reef at first light, takes the crossing out of every day and picks up the isolated pinnacles that sit along the route.

The reef is two shallow platforms split by a deeper channel, each rimmed by a coral shelf that runs well out before it breaks. Inside are lagoons with mangrove along the shores of the main islet; outside, the shelf edge drops away and the character of a dive comes down to which side the wind lets you use. The eastern rim is the steepest, falling close to vertical from shallow water, while the northern and western edges run more as sloping coral shoulders and ridges, with current tracking along the lip rather than pushing over it.

The standard move is to drop onto the shallow reef, fin to the lip and stop there, facing out into blue with the shelf behind you as a reference. Fishing has been shut out of the park for roughly two decades and the fish read accordingly: grouper tend to hold position rather than bolt, and jack schools give up less ground than on reefs that are still worked. Coral cover on the shelf tops is good across long stretches, though the reef still carries damage from the years before the ban. Surface intervals happen on the boat or on the sand, and there is nothing else to do but dive.

This suits divers who are comfortable descending into blue with no bottom in sight, who read a forecast before booking and who accept that a trip can be called off at the mooring. Nothing runs from July to September, when the south-west monsoon and the typhoon season shut the crossing down, and March to May is the settled stretch worth aiming for. Macro hunters and anyone wanting a resort strip, easy shore entries or a choice of operators should look elsewhere in the Philippines; Apo Reef pairs better with the Coron wrecks or a Puerto Galera week than it stands alone.