Blue Hole

Best time to dive

January to December; December to June

What you might see

• Grey reef sharkLikely
• Moray eelLikely
• Sea turtleLikely

Sightings are seasonal probabilities, not promises - even in peak season nature does its own thing.

Certification & difficulty

Advanced Open Water - advanced conditions (currents/depth); dive within your training.

Snorkelling

Not a snorkel site - no (boat/mooring access, deep sinkhole, strong current)

Safety notes

strong current, easy to exceed planned depth in the shaft, open-ocean/drift exit conditions, proximity to sheer cliffs of Orote Peninsula

Permits & fees

no diver permit fee found; boat departs from Cabras Marina/Apra Harbor area, booked through licensed operators

Permits and operators change - confirm before booking.

Location

Nearest hub: Apra Harbor (Guam)