Silversonic Barrier Reef Cruise (Certified Dive) photos More Silversonic Barrier Reef Cruise (Certified Dive) photos tours ‹ • Up to three certified dives, instructor-led• Three Agincourt ribbon reef sites• Drift and wall dives, bommies, pinnacles and swim-throughs• About 5 hours at the reef• Swim with dwarf minke whales in season, if encountered Silversonic Barrier Reef Cruise (Certified Dive) from $381/person Start: Port Douglas End: Port Douglas ›