



by Seastar Cruises
How do you want to book?
✓Confirmation before Wed, 9 Sept - card's only charged if it's a yes. If it's a no, still time to book on Viator.
Book on Viator Confirmed right away, but you pay full price.A$560The tour begins with check-in at 7:30 am at Cairns Marlin Marina, where guests board the luxury Seastar Cruises vessel. The 7.5-hour trip includes a maximum of 36 passengers. The first destination is Michaelmas Cay, located 22 nautical miles from Cairns. Guests spend about two hours on this large, uninhabited coral cay and its surrounding waters. Access to Michaelmas Cay is limited to very few vessels, including Seastar Cruises, ensuring a less crowded experience. After Michaelmas Cay, the boat travels 30 nautical miles to Hastings Reef, part of the outer Great Barrier Reef. Guests snorkel here for approximately two hours under guided supervision. Hastings Reef features a shallow top with steep sides and often visible breakers where ocean swells meet the reef wall. Throughout the day, the air-conditioned vessel provides morning and afternoon tea, lunch, and all snorkeling equipment, including masks, snorkels, fins, buoyancy vests, and noodles. Seasonal wet-suits or stinger suits are also supplied. A glass-bottom boat is available for viewing the reef without entering the water. Free photos from the tour are posted daily on Facebook. Optional extras include introductory and certified scuba diving, which are not included in the tour price. Return bus transfers, cold drinks, and snacks are also not included. The tour concludes with a return to the Cairns Esplanade in the afternoon.
Seastar Cruises Reef Day Trips
Passengers check in at 7.30 am at Cairns Marlin Marina, E finger, and board the Seastar.
30 min
Michaelmas Cay
Michaelmas Cay lies 22 nautical miles (40 km) from Cairns and is the largest uninhabited coral cay in the Cairns region. Seastar Cruises is the first vessel to arrive here, and only two daily tour vessels have permission to access this protected island. Guests spend about two hours on the island and nearby waters.
120 min
Great Barrier Reef
The tour then visits Hastings Reef, 30 nautical miles from Cairns. This outer reef has a shallow top with steep sides resembling cliffs and is often marked by breakers from ocean swells. Visitors snorkel here for about two hours.
120 min
Return to Cairns Esplanade
After the stops at Michaelmas Cay and Hastings Reef and enjoying meals on board the air-conditioned vessel, guests are returned to the Cairns Esplanade approximately 7.5 hours after departure.
30 min
Departure Point: Check in 7.30 am E Finger Cairns Marlin Marina on board Seastar Return at approx 4 pm
End point
Departure Point: Check in 7.30 am E Finger Cairns Marlin Marina on board Seastar Return at approx 4 pm




by Seastar Cruises
How do you want to book?
✓Confirmation before Wed, 9 Sept - card's only charged if it's a yes. If it's a no, still time to book on Viator.
Book on Viator Confirmed right away, but you pay full price.A$560The tour begins with check-in at 7:30 am at Cairns Marlin Marina, where guests board the luxury Seastar Cruises vessel. The 7.5-hour trip includes a maximum of 36 passengers. The first destination is Michaelmas Cay, located 22 nautical miles from Cairns. Guests spend about two hours on this large, uninhabited coral cay and its surrounding waters. Access to Michaelmas Cay is limited to very few vessels, including Seastar Cruises, ensuring a less crowded experience. After Michaelmas Cay, the boat travels 30 nautical miles to Hastings Reef, part of the outer Great Barrier Reef. Guests snorkel here for approximately two hours under guided supervision. Hastings Reef features a shallow top with steep sides and often visible breakers where ocean swells meet the reef wall. Throughout the day, the air-conditioned vessel provides morning and afternoon tea, lunch, and all snorkeling equipment, including masks, snorkels, fins, buoyancy vests, and noodles. Seasonal wet-suits or stinger suits are also supplied. A glass-bottom boat is available for viewing the reef without entering the water. Free photos from the tour are posted daily on Facebook. Optional extras include introductory and certified scuba diving, which are not included in the tour price. Return bus transfers, cold drinks, and snacks are also not included. The tour concludes with a return to the Cairns Esplanade in the afternoon.
Seastar Cruises Reef Day Trips
Passengers check in at 7.30 am at Cairns Marlin Marina, E finger, and board the Seastar.
30 min
Michaelmas Cay
Michaelmas Cay lies 22 nautical miles (40 km) from Cairns and is the largest uninhabited coral cay in the Cairns region. Seastar Cruises is the first vessel to arrive here, and only two daily tour vessels have permission to access this protected island. Guests spend about two hours on the island and nearby waters.
120 min
Great Barrier Reef
The tour then visits Hastings Reef, 30 nautical miles from Cairns. This outer reef has a shallow top with steep sides resembling cliffs and is often marked by breakers from ocean swells. Visitors snorkel here for about two hours.
120 min
Return to Cairns Esplanade
After the stops at Michaelmas Cay and Hastings Reef and enjoying meals on board the air-conditioned vessel, guests are returned to the Cairns Esplanade approximately 7.5 hours after departure.
30 min
Departure Point: Check in 7.30 am E Finger Cairns Marlin Marina on board Seastar Return at approx 4 pm
End point
Departure Point: Check in 7.30 am E Finger Cairns Marlin Marina on board Seastar Return at approx 4 pm