Ambrym Outer Wall - Ambrym

55m Max

20-40m Vis

boat

Site Overview

Ambrym Outer Wall is one of the signature dive sites of Pentecost & Ambrym (Outer Islands – Remote) in Vanuatu. A pristine drop-off with gorgonians, schooling barracuda and possible manta rays, strong currents. The site reaches a maximum depth of about 55 m, with an average depth near 25 m, and its wall, drop-off topography is draped in coral, rock. Marine life is the headline attraction, with Grey reef shark, Gorgonian sea fan, Soft coral gardens, Green sea turtle, Great barracuda, Whitetip reef shark, Black coral, Gorgonian sea fan, Reef manta ray regularly recorded here, drawn in by the strong currents and the rich coral-reef productivity of the region. Visibility typically ranges from 20 to 40 m, while water temperatures hold a consistent 24 to 29 C year-round, comfortable in a 3 to 5 mm wetsuit. Conditions suit advanced divers, and with the right guide the site delivers both the drama of its wall, drop-off and intimate encounters with the smaller residents. Local operators run regular trips from Craig Cove, Ambrym, and the protected, low-tourism setting keeps coral cover dense and fish life abundant, making Ambrym Outer Wall a genuine standout on any Vanuatu itinerary. Divers who time their visit to the dry season will find the most predictable conditions, though the site rewards repeat visits across the year.

Dive Briefing

"The dive at Ambrym Outer Wall begins with a thorough operator briefing covering the site layout, expected marine life and emergency procedures, followed by a controlled entry and a short transfer from Craig Cove, Ambrym. Descending toward the wall, drop-off profile, divers are immediately surrounded by Grey reef shark, Gorgonian sea fan, Soft coral gardens, Green sea turtle, Great barracuda, with the reef and structure revealing more detail the closer you look. The maximum depth reaches about 55 m while the average sits near 25 m, so a dive computer and disciplined gas planning keep the profile safe and comfortable. Currents are described as strong, and the guide chooses the entry time to make the most of slack or mild flow, using a reef hook or surface marker when needed. Neutral buoyancy protects the fragile coral and the group stays close to manage depth and any surge. The safety stop is completed in open water on a surface marker, and the boat follows the bubbles to collect divers at the exit point for a relaxed return to base. Ambrym Outer Wall is best dived from April to November, Vanuatu's dry season, when settled seas and the clearest water make for the most reliable conditions. The strong current is at its calmest around slack tide, so most operators plan the descent to coincide with the turn of the tide. Water holds 24 to 29 C, and a 3 to 5 mm wetsuit is ample. Plan a slow profile to enjoy the 12 to 55 m range and to protect the fragile reef with good buoyancy. A torch helps reveal the smaller residents, and a surface marker buoy is recommended for the safety stop so the boat can track divers in the often gentle swell."