Agincourt Reef - Castle Rock

Best time to dive

May to October

What you might see

• Grey reef sharkLikely
• Sea turtleLikely

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

Certification & difficulty

Open Water

Snorkelling

Snorkel-friendly - Yes - crest rises to 1-2 m of the surface, suitable for snorkeling from the boat

Safety notes

Wall/current exposure at depth, whitetip reef sharks present but low risk if unprovoked, strict no-touch coral etiquette, moorings only (no anchoring), possible surface chop on entry/exit

Permits & fees

GBR Environmental Management Charge (EMC): AUD $8.00/person full-day visit (3+ hrs), AUD $4.00 part-day, per GBRMPA; almost always bundled into the operator's trip price

Permits and operators change - confirm before booking.

Location

Nearest hub: Port Douglas