Spend a full day aboard a 29m catamaran exploring three Agincourt Reef sites off Port Douglas. Snorkel with marine naturalists, try introductory or certified dives, and enjoy onboard meals and facilities.
More ways to explore the area's outdoor wonders
You step off the marina jetty with salt on your lips and the catamaran’s shadow already cutting across the Coral Sea. By mid-morning the Silversonic’s wide sundecks are a stage for wet suits sliding on, instructors briefing groups, and the reef itself resolving from a rim of blue to an explosion of color beneath the surface.
Difficulty
moderate
Duration
Approximately 10 hours (full day)
Fitness Level
Should be comfortable climbing ladders, swimming and spending several hours active in open water; moderate fitness recommended.
Wildlife
History
Agincourt Reef lies off the coast of Djabugay country; local Indigenous connection to sea country informs contemporary conservation and guiding practices.
Conservation
The Great Barrier Reef Marine Park regulates activities and zoning; avoid touching coral, use reef-safe products, and follow guides’ instructions to minimize impact.
Reserve your spot on the Silversonic Outer Great Barrier Reef Cruise from Port Douglas today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Arrive Early for Check-In
Check in at Quicksilver’s office by 8:00am; boarding begins 8:15 and the vessel departs at 8:30 promptly.
Follow Dive Safety Windows
If you dive, wait 12 hours before flying after a single dive (24 hours for multiple dives) to avoid decompression risks.
Use Reef-Safe Sunscreen
Apply reef-safe sunscreen and wear a sun shirt to protect skin and coral from chemical damage and UV exposure.
Bring Water Shoes or Reef Shoes
Shoes protect feet on the boarding ladder and while in shallow coral areas when entering or exiting the water.
Swimsuit and Quick-Dry Towel
Wetsuits/lycra suits provided; your own suit and towel make surface time more comfortable.
summer
Reef-Safe Sunscreen
Protects your skin and the reef — chemical-free sunscreen is preferred.
Hat and UV Shirt
Light sun protection for prolonged deck exposure between water sessions.
spring
Water Shoes or Reef Boots
Protects feet when boarding and if you need to stand on rocky or shallow reef areas.