I-169
Also known as: I-169 Shinohara
Best time to dive
December to April
Certification & difficulty
Technical - advanced conditions (currents/depth); dive within your training.
Snorkelling
Not a snorkel site - No - wreck depth (37m+) is far beyond snorkeling range
Safety notes
History of fatal flooding in 1944 (entire Japanese crew reportedly suffocated during an emergency dive); documented diver deaths in 1974 during penetration attempts; hatches were sealed by Japanese salvage teams in 1973; depth-charge damage to bow/conning tower and stern; deep depth (37-46m) with limited no-decompression time; confined, silt-prone interior spaces; a literal war grave/tomb for its crew - treat with utmost respect and do not penetrate without specific technical training and guide familiarity
Permits & fees
Chuuk State dive permit required, reported ~$50/year (per Blue Lagoon Dive Shop rates); technical gases (O2, He) available at extra cost from Blue Lagoon Dive Shop for deeper/tec dives - confirm current fees locally
Permits and operators change - confirm before booking.
Location
Nearest hub: Weno (Chuuk)
This profile is desk research, compiled from public sources - not a first-hand dive report. Coordinates are approximate.