About this tour
Launch from Fremantle for a full day exploring Rottnest Island's underwater limestone formations. This eight-hour boat dive trips takes you to sites carved by Indian Ocean swells into dramatic caverns, swim-throughs and crevices teeming with soft corals and diverse fish. Two dives included with air supplied for the first; snorkellers are welcome on adjacent shallower reefs accessed by tender. Morning and afternoon tea, hot chocolate, and a buffet lunch keep you fuelled between underwater missions.
Highlights
- Two boat dives in sculpted limestone caverns and swim-throughs
- Soft corals, dense fish life, maze-like cave exploration
- Snorkellers welcome at adjacent shallow reef sites
- Tender transport for non-divers to snorkel locations
- Buffet lunch and hot beverages throughout the day
- All scuba and snorkel gear provided and included
- Eight hours on the water from Fremantle departure
What to expect
You'll board at Fremantle and motor out to Rottnest Island's dive sites. Expect moderate physical exertion entering and exiting the boat and underwater. The first dive runs on supplied air; you'll need to bring or hire a second cylinder for the second dive. Between dives you'll surface, refuel on tea and snacks, and prepare for the next descent. Snorkellers travel separately to shallower reefs by tender, giving them their own window into the island's marine life. The buffet lunch arrives mid-day. All gear is provided, though you should be a comfortable diver or confident snorkeller. The boat returns to Fremantle by late afternoon.
Good to know
Book lunch dietary requirements 24 hours ahead. Bring or hire your second air cylinder in advance. Not suitable if pregnant, recovering from spinal injury, or with cardiovascular concerns. Moderate fitness essential. Service animals permitted. Infants must sit on an adult's lap. Rottnest Island landing fee applies only if dropped on shore afterwards.
Tour sold and operated by Viator via Viator. Descriptions on this page are original BugBitten summaries written by our team — not copied from the operator. Prices and availability are confirmed at checkout.






