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    Mili Pass - Mili Atoll

    40m Max
    20-45m Vis
    boat

    Site Overview

    Mili Pass is one of the most celebrated dive sites in Mili Atoll, a drift dive through the Mili pass with grey reef sharks, barracuda, tuna and the occasional manta ray over pristine coral walls. The site is defined by a current-swept pass cutting through the Mili reef, funnelling rich water past the divers, creating an underwater landscape that rewards divers with every visit. Grey reef sharks, barracuda and tuna work the current, with mantas occasionally on the pass and soft corals on the walls. Water clarity in this part of the Marshall Islands is frequently excellent, with visibility often extending well beyond 20 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 Mili Pass 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 Mili Pass 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. Mili Pass 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 grey reef shark, great barracuda, dogtooth tuna, bigeye trevally, reef manta ray, soft coral gardens, makes every descent memorable.

    Dive Briefing

    "The dive at Mili Pass 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 current-swept pass cutting through the mili reef, funnelling rich water past the divers, divers are immediately surrounded by grey reef shark, great barracuda, dogtooth tuna, bigeye trevally, with the reef revealing more detail the closer you look. The maximum depth reaches about 40 metres, while the average depth sits near 24 metres, so gas planning and a dive computer 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 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. Dive the pass on a planned current window for the best shark and tuna action over the walls"

    Signature Marine Life

    grey reef shark

    high

    Carcharhinus amblyrhynchos

    Best: January, February, March

    great barracuda

    high

    Sphyraena barracuda

    Best: January, February, March

    dogtooth tuna

    high

    Gymnosarda unicolor

    Best: January, February, March

    bigeye trevally

    high

    Caranx sexfasciatus

    Best: January, February, March

    reef manta ray

    moderate

    Mobula alfredi

    Best: January, February, March

    soft coral gardens

    high

    Alcyonacea

    Best: January, February, March

    Safety & Hazards

    • Strong pass current
    • Depth to 40 m
    • Blue-water separation risk
    • Shark encounters need control
    • Boat pickup in current
    • Surge at the entries
    Nearest Chamber
    Majuro Recompression Chamber
    250km away

    Traveler Notes

    Who is this for?

    Mili Pass is designed for advanced divers who want a memorable Mili Atoll experience shaped by a current-swept pass cutting through the Mili reef, funnelling rich water past the divers. The site requires Advanced Open Water certification, and the key considerations are strong pass current and depth to 40 m, so good buoyancy and planning are important. Wide-angle photographers will enjoy the reef scale and passing pelagics, while macro enthusiasts find plenty of small life among the coral and structure. It is a rewarding choice for travellers who appreciate healthy, protected reefs and a mix of calm and exhilarating conditions. With the right guidance, the site delivers a genuine sense of the remote Pacific that keeps divers returning to the Marshall Islands.

    reef
    drift
    shark
    mili-pass
    tuna

    For Non-Divers

    Mili Island WWII history walks, Lagoon picnics and surf breaks, Local copra and handicraft villages

    Quick Stats

    Difficultyadvanced
    CertificationAdvanced Open Water
    Currentstrong
    Water Temp27-30°C
    Best TimeDecember - April

    Dive Logistics

    Operators
    • Mili Atoll Expeditions
    • Marshall Islands Atoll Explorer
    Pricing Guide
    $160 - $280
    Per 2-tank boat dive

    Photography Info

    Recommended Gear
    16-35mm

    Best for: wide_angle

    Nearby Stay

    Mili Island Lodge

    Mili Atoll250km away

    Check Availability

    Marshall Islands Atoll Explorer

    Majuro (liveaboard)250km away

    Check Availability