

Best for intermediate divers, 9-35m, boat entry, strong current.
Main Channel in Yap, Micronesia, is a boat-access drift dive along a reef system. The site ranges from 9 to 35 metres in depth and is defined by strong currents that require careful planning and coordination with a dive guide. Visibility is variable, ranging from 10 to 30 metres, and water temperatures remain consistent between 28 and 30 degrees Celsius. Divers should be aware of boat traffic in the area and time their entry according to the tidal cycle to manage the flow. This site is suited for intermediate divers capable of navigating strong currents and maintaining proximity to their guide.
9.48918, 138.13178
Strong currents can surge with little warning, so stay close to your dive guide and agree on a bail-out plan before descending. Confirm current conditions and boat cover with your operator on the day, as timing your entry around the tidal cycle makes a significant difference to your dive.
Boat 15 mins
Recorded at this site
Depth
9-35m
Visibility
10-30m
Skill Level
Intermediate
Entry
Boat
Boat required
Water Temp
28-30°C
Current
Strong
Best Time
Jan, Feb, Mar, Apr, Dec
No, this site is rated for intermediate divers due to the strong currents and the requirement to manage drift conditions effectively.
The site features a depth range of 9 to 35 metres.
Main Channel is a boat-access site; a boat is required to reach the location.
The main hazards include strong, unpredictable currents and potential boat traffic. Divers should also be prepared for variable visibility.
This site is designated as a dive location and is not suitable for snorkelling due to the strong currents and depth profile.
Diving at Main Channel in Colonia requires the following certifications: Open Water. Always dive within your training limits.
A rashguard or 2mm shorty is recommended for diving at Main Channel in Colonia. Water temperatures range from 28°C to 30°C.
The best months to visit Main Channel in Colonia are January, February, March, April, and December. Conditions outside these months can still be good but are less predictable.
Main Channel in Colonia can have strong currents. Advanced experience with drift diving and current navigation is recommended.
Visibility at Main Channel in Colonia typically ranges from 10 metres to 30 metres. Conditions vary with weather, tides, and seasons.