Clam Bay is a sweeping, open-facing bay on the eastern side of Great Keppel Island (Wop-pa), part of the Keppel Bay Islands in the Southern Great Barrier Reef. Renowned as a coral trout breeding ground, this fringing reef drops gently from the sandy shore, offering easy access to shallow coral gardens teeming with juvenile coral colonies, anemones, and the occasional turtle. The bay's proximity to the island's walking tracks makes it a favourite for snorkellers who prefer to wade straight in from the beach. Best explored at mid-to-low tide under northerly or easterly winds, when the reef edge is most accessible and the water clarity is at its finest.
Keppel Bay Islands - Clam Bay
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Wave Height 0.0 mSwell Period 3.3 sWind Speed 1.0 knPrecipitation 0.0 mmTidal Phase flood
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Community contribution: submitted by Daniel
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Low risk: Wind exposure (southerly/swell)
Best snorkelling conditions occur during northerly or easterly winds. Southerly/westerly winds can create choppy surface conditions and reduced visibility.
Low risk: Tidal range (reef depth)
The reef edge is best accessed at mid-to-low tide. At high tide the reef shelf may be deeper, making it harder to see features; at very low tide corals can be dangerously shallow.
Low risk: Boat traffic
Boat traffic in the bay — water taxis, private vessels and charter boats operate in the area year-round, especially near the reef edge.
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Getting in
Snorkel tour
Entry
Clam Bay is on the eastern side of Great Keppel Island (Wop-pa), part of the Keppel Bay Islands group. A 30-minute ferry from Rosslyn Bay Harbour (near Yeppoon, Queensland) to Great Keppel Island. From the island's accommodation hub, walk via the airstrip east to Clam Bay — about 20–30 minutes on foot. Alternatively, reach by private boat, water taxi, or charter.
Parking & facilities
Secure parking is available at Rosslyn Bay Harbour (Keppel Bay Marina) where the ferry departs. No vehicle access on the island itself — it's pedestrian-only once you arrive.
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About this data
- Conditions last evaluated
- Spot data last updated
- Data sources
- Open-Meteo (marine & weather conditions), tide predictions via UTide, community contributors (descriptions, hazards, marine life).
- License
- Spot content licensed under CC BY-SA 4.0. How's the Spot is open source.
Weather & swell ┬╖ Open-Meteo marine & weather APIs Tides ┬╖ UTide harmonic analysis Sea & safety ┬╖ community reports