USS Pilotfish - Bikini Atoll

52m Max

25-45m Vis

liveaboard

Site Overview

USS Pilotfish is one of the most celebrated dive sites in Bikini Atoll, a Balao-class submarine sunk in 1946, fully intact at 50 m, a dive for deep-diving specialists only. The site is defined by a Balao-class submarine fully intact at 50 m, a sleek hull with preserved sail and deck fittings, creating an underwater landscape that rewards divers with every visit. The intact hull draws groupers and morays, with soft corals coating the deck and rudder. Water clarity in this part of the Marshall Islands is frequently excellent, with visibility often extending well beyond 25 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 USS Pilotfish 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 USS Pilotfish 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. USS Pilotfish 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 giant grouper, giant moray eel, soft coral gardens, grey reef shark, humper red snapper, dogtooth tuna, makes every descent memorable.

Dive Briefing

"The dive at USS Pilotfish 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 a balao-class submarine fully intact at 50 m, a sleek hull with preserved sail and deck fittings, divers are immediately surrounded by giant grouper, giant moray eel, soft coral gardens, grey reef shark, with the reef revealing more detail the closer you look. The maximum depth reaches about 52 metres, while the average depth sits near 50 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 calm morning descent along the sleek hull keeps the profile tight and the deco manageable"