Written by Ben Cole· Updated Apr 2026Quick Actions
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About Remarkable Cave
A sea cave at the southernmost tip of Port Arthur where waves have carved a tunnel through dolerite headland, creating a framed view of the Southern Ocean through a rectangular natural window in the rock. The cave opening is best viewed from a platform above, where the ocean below can be seen rushing in and out through the narrow tunnel below. On a clear day the view through the cave frame extends to Maatsuyker Island 50km to the southwest.
About
A sea cave at the southernmost tip of Port Arthur where waves have carved a tunnel through dolerite headland, creating a framed view of the Southern Ocean through a rectangular natural window in the rock. The cave opening is best viewed from a platform above, where the ocean below can be seen rushing in and out through the narrow tunnel below. On a clear day the view through the cave frame extends to Maatsuyker Island 50km to the southwest.
History & Significance
Remarkable Cave is a natural sea cave carved over millennia by wave erosion through dolerite rock at the southernmost point of the Tasman Peninsula. The distinctive rectangular opening frames a dramatic view of the Southern Ocean, creating one of Tasmania's most photographed natural landmarks. It has become an iconic stop for visitors exploring the Port Arthur region and surrounding coastal wilderness.
Getting There
Near Port Arthur historic site on the Tasman Peninsula, approximately 100km south of Hobart. Access via Arthur Highway; follow signs to Port Arthur then continue to the cave carpark at the southern tip.
Parking
Free parking available at the dedicated carpark. Limited capacity (approximately 20–30 spaces); arrive early during peak season (December–February). Accessible parking available. Overflow parking at nearby Port Arthur historic site about 2km away.
Visitor Tips
- •Visit at low tide for best cave viewing and safety
- •Bring a camera — the framed ocean view is stunning on clear days
- •Wear sturdy, closed-toe shoes — paths can be slippery and uneven
- •Windy conditions are common; dress in layers
- •Go early morning or late afternoon to avoid peak visitor times and get better light for photography
Quick Facts
At a Glance
The Place
- Significance
- State
Plan Your Visit
- Duration
- 1 hour
- Best Time
- December to February for calmer seas and clearer views. Avoid midday when tour groups peak. Early morning or late afternoon offers best light and fewer crowds. Tasmanian winter can bring heavy seas that obscure the cave opening.
- Hours
- 24/7
Location
- Region
- Tasman Peninsula
- State
- Tasmania
Good to Know
Activities
Family & Visitor Info
- Ages
- All ages, but young children need supervision on uneven cliff-top paths
- Shade/Cover
- Limited shade
- Pram Friendly
- No
Food & Drink
Picnic area available; bring supplies from Port Arthur or nearby towns
Features
Facilities
Nearby
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