Ishigaki Wreck - Japan Diving
Site Overview
The Ishigaki Wreck is a purpose-sunken vessel resting upright on a sandy bottom at thirty-three metres depth off the southern coast of Ishigaki Island. The wreck has been extensively colonised by soft corals gorgonian fans and sponges transforming the metal hull into a thriving artificial reef that attracts an abundance of marine life. Whitetip reef sharks shelter within the hull structure while schooling jacks and barracuda patrol the water column above the wreck. The main deck sits at approximately twenty metres providing an accessible overview for divers without wreck speciality certification. Glassfish and squirrelfish school in the darkened interior spaces creating spectacular photography opportunities with torch illumination. The surrounding sandy bottom hosts garden eels blue-spotted stingrays and occasional eagle rays passing overhead. The wreck has become one of Ishigaki's most popular advanced dive sites offering the combination of wreck exploration marine life colonisation and deep diving adventure. Dive operators from Ishigaki provide guided wreck dives with thorough briefings covering hull condition penetration routes and emergency procedures. The wreck has become one of Ishigaki's most popular advanced dive sites offering the combination of wreck exploration marine life colonisation and deep diving adventure in the clear subtropical waters. Dive operators from Ishigaki provide guided wreck dives with thorough briefings covering hull condition penetration routes and emergency procedures ensuring safe exploration of this fascinating artificial reef ecosystem throughout the diving season.
Dive Briefing
"Descend on the mooring line to the upper deck at twenty metres conducting a visual assessment of the wreck structure and current conditions. Circumnavigate the hull at depth observing the coral colonisation and fish schools sheltering in the recesses. Trained wreck divers may enter the cargo hold through the designated hatch following the guideline through the interior space. After the wreck exploration ascend along the mooring line completing a three-minute safety stop at five metres. Trained wreck divers may enter the cargo hold through the designated hatch following the guideline through the interior space observing the glassfish schools and hull colonisation in the torch-illuminated environment. After the wreck exploration ascend along the mooring line completing a three-minute safety stop at five metres while observing the reef community on the surrounding substrate. Throughout the dive maintain awareness of your buddy position buoyancy control and depth gauge readings while observing the diverse marine communities and geological formations that make this site a rewarding destination for divers of all experience levels visiting the region during the optimal diving season."
Signature Marine Life
Reef manta ray
Mobula alfredi
Best: January, February, March
Whitetip reef shark
Triaenodon obesus
Best: April, May, June
Humphead wrasse
Cheilinus undulatus
Best: March, April, May
Barramundi cod
Cromileptes altivelis
Best: March, April, May
Giant moray eel
Gymnothorax javanicus
Best: January, February, March
Safety & Hazards
- Wreck penetration hazards including restricted spaces overhead environments and deteriorating metal structures with sharp edges
- Depth reaching 33 metres requiring advanced certification nitrogen management and conservative bottom time planning
- Moderate current conditions around the wreck superstructure requiring careful descent on the mooring line and drift awareness
- Boat traffic from dive boats and fishing vessels in the approach area requiring surface marker buoy deployment during ascent
- Sediment inside the wreck can be disturbed by fin kicks reducing visibility in enclosed spaces and requiring torch illumination
Traveler Notes
Who is this for?
The Ishigaki Wreck is designed for advanced divers and wreck speciality holders seeking purpose-sunk wreck exploration with penetration opportunities. The upper deck at twenty metres allows intermediate divers to experience wreck diving without full penetration. Technical divers can explore deeper sections and confined spaces within the hull. Photographers will find exceptional wide-angle opportunities with the wreck structure and schooling fish creating dramatic compositions. Technical divers can explore deeper sections and confined spaces within the hull structure requiring redundant air supply and specialised equipment. Photographers will find exceptional wide-angle opportunities with the wreck structure and schooling fish creating dramatic compositions against the blue water background at various depths throughout the dive profile.
Quick Stats
Dive Logistics
- Bluefield Yomitan
- Diving Service Uminchu
- Kerama Divers
- Pirania Divers Okinawa
- Sea Serpent Dive Center
Photography Info
Best for: wide_angle
Nearby Stay
Hotel Gracery Naha
Naha, Okinawa • 5km away
Ryukyu Hotel & Resort Nashiro Beach
Itoman, Okinawa • 10km away