Conditions referenceSeason, water and visibilityBest Dec–Apr · Mild current · 28–30°C (coldest Jan, warmest Mar)
- Current
- Mild
- Water temperature
- 28–30°C (coldest Jan, warmest Mar)
- Visibility
- 15–40m: Commonly 15 to 40m; clearest in the drier months roughly December to April.
- Experience
- Advanced Open Water covers the shallower wrecks (roughly 9 to 30m) and reaches an estimated 95% of the commonly dived hulls, per operators.
01 · Marine life
What you may see
Sightings are never guaranteed. The bars show typical likelihood by month.
| Month | Likelihood |
|---|---|
| January | commonly seen |
| February | commonly seen |
| March | commonly seen |
| April | commonly seen |
| May | commonly seen |
| June | commonly seen |
| July | commonly seen |
| August | commonly seen |
| September | commonly seen |
| October | commonly seen |
| November | commonly seen |
| December | commonly seen |
Resident in the holds, portholes and wreckage of most ships.
| Month | Likelihood |
|---|---|
| January | commonly seen |
| February | commonly seen |
| March | commonly seen |
| April | commonly seen |
| May | commonly seen |
| June | commonly seen |
| July | commonly seen |
| August | commonly seen |
| September | commonly seen |
| October | commonly seen |
| November | commonly seen |
| December | commonly seen |
Regularly hang over the larger hulls and superstructures.
| Month | Likelihood |
|---|---|
| January | commonly seen |
| February | commonly seen |
| March | commonly seen |
| April | commonly seen |
| May | commonly seen |
| June | commonly seen |
| July | commonly seen |
| August | commonly seen |
| September | commonly seen |
| October | commonly seen |
| November | commonly seen |
| December | commonly seen |
Reliable on the anemone-covered shallow wrecks.
| Month | Likelihood |
|---|---|
| January | commonly seen |
| February | commonly seen |
| March | commonly seen |
| April | commonly seen |
| May | commonly seen |
| June | commonly seen |
| July | commonly seen |
| August | commonly seen |
| September | commonly seen |
| October | commonly seen |
| November | commonly seen |
| December | commonly seen |
Schools hang around the superstructures of the larger wrecks.
See all 9 species
02 · Dive sites
Dive sites worth knowing
A starting point, not a ranking. Conditions decide what works on the day.
Aikoku Maru
Aikoku Maru: an armed merchant cruiser that exploded during Operation Hailstone.
40–64m · Mild current
Fujikawa Maru
Fujikawa Maru: an armed passenger-cargo ship, upright and intact, the classic Truk first dive.
9–30m · Mild current
Heian Maru
Heian Maru: a submarine tender and the biggest wreck in Truk, resting on its port side.
11–33m · Mild current
See all 7 dive sites
03 · LogisticsGetting there and costsModerate. Fly to TKK. Typical trip $$–$$$.
Route overview
Moderate
Reachable but with some friction: 1 domestic flight.
Airport options
TKK
Chuuk International Airport
Reached on United's Micronesia island-hopper, almost always via Guam (GUM); Guam itself is the long-haul hub from Asia, Honolulu or the US mainland. Liveaboards and the land-based resort board on Weno island, a short drive from the airport.
Typical trip cost
$$–$$$
$2,000–4,000 to over $4,000
Per person, excluding international flights.
- Liveaboard trips (Truk Master, SS Thorfinn, Odyssey) typically run 7 to 10 nights and commonly land around $3,000 to $5,500 per person depending on boat and cabin, excluding flights.
- The land-based option (Blue Lagoon Resort / Truk Stop Hotel with day boats) is cheaper per day.
- International airfare via Guam is a significant added cost and the island-hopper routing is the real expense in time and money, not the diving itself.
Permit or park fee
What you pay
Chuuk State dive/permit fee, typically bundled by the operator
amount not independently verified here.
How it works
Chuuk State levies a lagoon/wreck dive permit fee, collected via operators; the wrecks sit within a protected area and removing artifacts is illegal, with fines and possible jail. Confirm the current fee with your operator.