Tasmania · Attraction
Remarkable Cave
A tunnel carved by the sea
schedule 1 min read / Updated Jun 2026
At the wild southern tip of the Tasman Peninsula, Remarkable Cave is a tunnel-shaped sea cave carved through ancient sandstone by the relentless force of Southern Ocean swells. A short but steep walk of 115 steps brings visitors to a purpose-built platform at the base of the cove, where the framed view through the cave's arch reveals an ever-changing theatre of surging green water and rugged coastal rock.
The cave was created when wave action eroded the sandstone cliff until one wall collapsed, leaving the distinctive arch visible today. At certain times of year, particularly during strong swells, waves rush through the tunnel with considerable force and produce a deep booming sound that echoes up the cliff face. Visitors should expect to get wet and check tide predictions before descending, as sections of the walk are inaccessible at high tide.
From the carpark, a shorter accessible path leads to an upper viewing platform with panoramic views over the rugged southern coastline before the steps descend to the cave level. Maingon Bay is visible from the platform, and little penguins occasionally come ashore at dusk in the area nearby.
Remarkable Cave sits within Tasman National Park; a valid national park pass is required for entry. No other facilities are on site beyond the carpark and information signs, so bring water and take all rubbish with you.
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Scenic views
