Vanuatu Reefs

Espiritu Santo sits at the top of Vanuatu's main island chain, and it offers something genuinely rare: a destination where wreck diving, healthy reef systems, and unexpected encounters with megafauna all converge within a short boat ride of each other. The SS President Coolidge is the centrepiece — a 200-metre American troop transport lying on a sandy slope between 20 and 70 metres, accessible from shore at the northern end.

You can enter from the Coolidge's bow section at around 21 metres as a qualified open-water diver, though reaching the deeper cargo holds and the famous "The Lady" mosaic requires advanced certification and a confident buoyancy check. Visibility typically runs 15 to 25 metres, and the wreck itself is encrusted in soft corals and sponges that have transformed steel into living reef over eight decades.

Away from the wreck, Santo's fringing reefs are in reasonable health compared with much of the Pacific — bleaching has touched some shallower sections, but the deeper walls around Aore Island and the southern passages hold strong coral cover and good fish density.

Reef sharks patrol most dive sites, bumphead parrotfish appear in loose aggregations near current-swept points, and dugongs are occasionally spotted in the seagrass beds off the east coast, though sightings are never guaranteed.

Most divers here operate on day boats out of Luganville. Liveaboards are rare; the area is compact enough that you don't need one. A handful of established operators — Allan Power Dive Tours being the most well-known — run multiple Coolidge dives daily with good equipment rental available.

Go between April and November for calmest seas and best visibility; the Coolidge is accessible year-round but advanced certification opens the most rewarding sections of the wreck.