Compare prices
EN
Snorkelers swimming above a vibrant coral reef teeming with blue fish

Explore

Agincourt Reef 3 (Quicksilver Platform)

Agincourt Reef 3 features a permanent floating pontoon operated by Quicksilver Cruises. It provides a stable base for swimmers and non-swimmers to explore the reef.

Photo: tour listing on Viator

Located on the outer edge of the Great Barrier Reef, this spacious pontoon sits in a sheltered lagoon. The platform makes reef access easy for all ages and swimming abilities.

Visitors can snorkel directly from the deck, take a semi-submersible tour, or view marine life from the underwater observatory. The facility includes undercover seating, changing rooms, and a wheelchair-accessible water lift.

Aerial view of a glass-bottom boat floating above colorful coral patches
Photo: tour listing on Viator
01

Activity Platform

Half dayGreat for families

This dual-level structure offers a stable base for your day on the reef. It features undercover seating, changing rooms, and a wheelchair-accessible water lift. You can access fresh water showers and enjoy a buffet lunch directly on the deck.

Aerial view of the Calypso boat anchored near the coral reef
Photo: tour listing on Viator
02

Underwater Observatory

30 minutesBest during fish feeding

Watch marine life without getting wet in this submerged viewing chamber. It sits directly in front of the platform and provides clear views of the coral environment. Visit during scheduled fish feedings for the most active fish viewing.

Close-up of a large blue Maori Wrasse swimming over the coral reef
Photo: tour listing on Viator
03

Semi-Submersibles

30 minutesIncluded in day ticket

These air-conditioned, submarine-style vessels take you on scenic cruises through the coral gardens. Tours are included in your day trip ticket and depart regularly from the platform. It is an excellent way to see the reef structure up close without swimming.

Book a Quicksilver Pontoon Cruise

Aerial view of a large pontoon and boat moored at Agincourt Reef
Quicksilver Great Barrier Reef Snorkel Cruise from Port Douglas8 h 4.6 (858)from $242
quicksilver snorkel cruisefrom $242 on Viator
Check dates