Arno Wrecks - Arno Atoll

18m Max

12-30m Vis

boat

Site Overview

Arno Wrecks is one of the most celebrated dive sites in Arno Atoll, remains of several WWII Japanese planes and small vessels in the Arno lagoon, coral-encrusted and home to morays and soldierfish, with scattered Zero fighter wreckage at 5 to 15 m. The site is defined by scattered coral-encrusted Japanese planes and small vessels across the Arno lagoon, creating an underwater landscape that rewards divers with every visit. Morays and soldierfish shelter in the wreckage, with soft coral and small reef fish on the structure. Water clarity in this part of the Marshall Islands is frequently excellent, with visibility often extending well beyond 12 metres and a comfortably warm tropical temperature year-round. The combination of healthy hard and soft corals, nutrient-rich currents and sheltered reef systems makes Arno Wrecks a reliable location for both macro photography and wide-angle encounters. Local dive operators run regular trips to the site from nearby bases, and the geography means conditions are suitable across a range of experience levels with appropriate guidance. Conservation is taken seriously throughout the Marshall Islands, and Arno Wrecks benefits from marine protection that keeps fish stocks high and coral coverage dense. Divers who plan their visit around the calm season will find the most predictable conditions, though the site can be enjoyed throughout the year. Arno Wrecks deserves a place on any serious Pacific diving itinerary, offering a genuine taste of the untouched beauty that makes Marshall Islands diving so highly regarded internationally. Regular visitors note that the marine life here, including coral-encrusted A6M Zero fighter, giant moray eel, soldierfish, soft coral gardens, humper red snapper, red lionfish, makes every descent memorable.

Dive Briefing

"The dive at Arno Wrecks begins with a controlled entry and a short transfer from the nearest base, with the guide giving a full briefing on the site layout, expected marine life and emergency procedures. Descending toward scattered coral-encrusted japanese planes and small vessels across the arno lagoon, divers are immediately surrounded by coral-encrusted A6M Zero fighter, giant moray eel, soldierfish, soft coral gardens, with the reef revealing more detail the closer you look. The maximum depth reaches about 18 metres, while the average depth sits near 11 metres, so gas planning and a dive computer keep the profile safe and comfortable. Currents are described as mild, and the guide chooses the entry time to make the most of slack or mild flow, using a reef hook or DSMB when needed. The topography offers natural swim-throughs and ledges that shelter larger animals, and the open water above the reef often holds cruising pelagics. Throughout the dive, neutral buoyancy protects the fragile coral, and the group stays close to the guide to manage depth and any surge. The safety stop is completed in open water on a DSMB, and the boat follows the bubbles to collect divers at the exit point for a relaxed return to base. A shallow morning dive in the calm lagoon reveals the Zero fighter wreckage with the best light"