Truk In a Nutshell
Truk Lagoon is considered by some to be the best wreck diving destination in the world, with over 60 World War II wrecks. The wrecks have a good amount of marine life on them, but some are quite deep, with the bottoms in the 100 - 150+ ft. range. The name "Truk" is actually a corruption of the native name for this area, Chuuk, which is part of the Federated States of Micronesia.
Due to its Natural Harbor - Truk was a strategically located, Japanese Naval Base during WWII.
Truk Lagoon dive sites
The San Francisco Maru is the most famous wreck because of its 3 tanks with guns on the deck, but it is also very deep, sitting at 170 ft.
The Fujikawa Maru is also a favorite wreck to dive, filled with fish and corals.
Best time to dive Truk Lagoon
Rainy season is April to December, and dry season is December to April. Any time is fine for diving, however, as visibility is fairly consistent year-round and rain is intermittent.
Truk Lagoon water temperatures
81-84 F / 27-28 C in the winter, 83-86 F / 28-30 C in the summer / early fall.
Truk Lagoon underwater visibility
You are in a lagoon, so visibility is good but not excellent; 40-60 ft. / 12-18 m. is the norm, and 30 ft. / 10 m. visibility would be a bad day. Sometimes visibility can reach 80 ft. / 24 m. or more, especially if it hasn't been raining (November - February).
If you have time, don't forget to do some WWII relic excursions!