Spend a day on a combo cruise from Rosslyn Bay to Great Keppel Island—glass-bottom sightseeing, guided snorkel in shallow reef patches, an on-board sausage sizzle, and free time on uncrowded beaches. Ideal for first-time reef visitors who want marine viewing and easy water access.
More ways to explore the area's outdoor wonders
You step off the ferry with salt on your skin and a horizon of low, rocky ridges framing white sand—Great Keppel Island announces itself in clean, uncomplicated gestures. The day begins with a half-hour cruise across the Capricorn Coast; the glass-bottom boat parts the blue and lays the reef out like a living map beneath your feet. Fish dart through coral heads, and the current, steady and insistent, nudges the boat along as guides point out shapes and behaviours.
Difficulty
moderate
Duration
6–8 hours
Fitness Level
Moderate fitness—comfortable swimming and short surface snorkel swims required, plus walking on uneven sand and rock during free time.
Wildlife
History
Great Keppel Island is on Woppaburra country; European grazing and small-scale development occurred in the 19th–20th centuries before tourism became the primary use.
Conservation
Stick to marked snorkeling zones, don’t touch or stand on coral, and use reef-safe sunscreen—these small actions reduce long-term damage to this sensitive reef system.
Reserve your spot on the Great Keppel Island Snorkel and Glass Bottom Boat Experience today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Check-in Early
Arrive at Pier One (Rosslyn Bay) 30 minutes before departure to complete check-in and safety briefings.
Use Reef-safe Sunscreen
Apply only reef-safe sunscreen before entering the water to protect corals and meet local guidelines.
Protect Against Seasickness
If you’re sensitive, pre-treat with medication or choose a mid-boat seat where movement is gentler.
Footwear for Rocky Access
Bring water shoes for walking reefs and island shorelines—sandals aren’t enough on rock and coral rubble.
Reef-safe sunscreen
Protects skin and prevents chemical damage to the reef.
summer
Water shoes
Provides traction for rocky shores and protection when entering shallow reef areas.
summer
Quick-dry clothing and swimwear
Keeps you comfortable on boat decks and during long hours in the sun.
summer
Dry bag (small)
Keeps phone, keys and a lightweight layer dry during boat transfers and beach time.