Reef Manta Ray — see destinations where it is seen
Mobula alfredi
Micronesia · Micronesia
Yap
Essentials
- Dive difficulty
- Intermediate
- Best months
- Not documented
- Access
- Day boat
- Reachable without a liveaboard
- Experience & eligibility
- No required certification documented
Wildlife
Documented presence, never a guaranteed sighting.
Whitetip Reef Shark — see destinations where it is seen
Triaenodon obesus
Dive sites
Goofnuw Channel ("Valley of the Rays")
- Depth : 9–37m
- Level : Intermediate
- Dive type : Drift
- Access : Day boat · Reachable without a liveaboard
Main wildlife : Reef Manta Ray
A second, NE-Yap manta cleaning-station channel with multiple cleaning blocks in one site (channel floor around 17m, the shallowest station around… Read moreShow less
A second, NE-Yap manta cleaning-station channel with multiple cleaning blocks in one site (channel floor around 17m, the shallowest station around 8m); best on the incoming tide, cited as the summer (May-October) peak-use window, complementing Mi'l Channel's November-May prime season. Day-boat/resort-based, no liveaboard.
Mi'il Channel
- Depth : 15–30m
- Level : Intermediate
- Dive type : Reef · Drift
- Access : Day boat · Reachable without a liveaboard
Main wildlife : Reef Manta Ray
A manta cleaning-station channel in NW Yap; current ranges from slack to roughly 6km/h, best dived as an incoming-tide drift — cited as the prime… Read moreShow less
A manta cleaning-station channel in NW Yap; current ranges from slack to roughly 6km/h, best dived as an incoming-tide drift — cited as the prime window November-May. Day-boat/resort-based diving from Yap Divers at Manta Ray Bay Resort; no liveaboard required or offered.
When to go
Choose a month
Conditions in Jan
Water28–29°C
VisibilityNot documented
CurrentNot documented
Water temperature: NOAA OISST satellite sea-surface normals (2020–2024, typical range for the month). It can be cooler at depth or below a thermocline — check with your operator for exposure protection.