HIJMS Nagato
Protected Area
Bikini
Why dive here
With 266+ marine species recorded in the area - including blacktip reef sharks, giant moray eels, grey reef sharks, octopuses and pufferfish - HIJMS Nagato offers some of Bikini Atoll's richest wreck diving. Water ranges 28-30°C, warmest August, September, October.
The Nagato is a monster, a genuinely immense piece of history. We’re talking about the flagship of the Imperial Japanese Navy, the vessel from which Admiral Yamamoto ordered the attack on Pearl Harbor. Now she rests upside down, at about 52 metres, and the scale of the wreck is just humbling. It's not a dive for the faint of heart, or for anyone without solid wreck experience, a deep cert, and preferably, sidemount. Our favourite part has to be the huge bow section, a leviathan of steel covered in life. You drop down, and it just keeps going. Schools of barracuda hang off the structure, shimmering in the shafts of light that pierce the gloom. Look out for the gigantic four-bladed propellers, they’re still mostly intact and give you a sense of the sheer power this ship once had. Inside, the sheer scale of the engine room is incredible – a cathedral of twisted metal, now home to clouds of glasseye snapper and the occasional patrolling reef shark. You can spend an entire dive just on one section of the Nagato and still feel like you’ve only scratched the surface. The wreck is slowly but surely transforming into a thriving artificial reef, with blackfin squirrelfish darting between fire coral and the larger parrotfish grazing on the hull. We'd suggest staying shallow on your deco stops, exploring the upper sections of the superstructure which are now a maze of coral growth.
Typical HIJMS Nagato Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Deep dive (35m) - monitor air consumption closely. Advanced certification recommended.
Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.
Always perform a 3-minute safety stop at 5m before surfacing.
Reviews for HIJMS Nagato
Conditions
Ocean conditions, forecast and tides for HIJMS Nagato
HIJMS Nagato Ocean Conditions
Monthly averages for HIJMS Nagato, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (11.58, 165.39) (4km away)
October Averages
Sea Temperature
30°C
85°F · Range: 28.7–30.7°C
Air Temperature
28°C
82°F
Wind Speed
7.91 m/s
15.4 knots
Atmospheric Pressure
1010.4 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
Plan & book
Ways to dive Bikini Atoll, from day trips to liveaboards.
Day trips & courses
via GetYourGuideGuided dives, courses and snorkel trips with instant booking.
Find dive trips in Bikini AtollPlaces to stay
via Booking.comHotels and dive resorts near Bikini Atoll.
Search stays in Bikini AtollDive insurance
Most travel insurance excludes or limits scuba. Check what you need before you go.
Dive insurance explainedPartner links: we may earn a commission if you book, at no extra cost to you. How we make money
Where to Stay near HIJMS Nagato
Prices from Booking.com. We may earn a commission at no extra cost to you.
