Remarkable Cave

Just south of Port Arthur on the Tasman Peninsula, Remarkable Cave is a dramatic sea-carved tunnel that frames the wild Southern Ocean through a natural rock arch. Accessible via a short boardwalk and steep staircase, this geological wonder offers a visceral encounter with Tasmania's raw coastal power. The cave's name is well earned: the view through the tunnel, especially at low tide when you can walk onto the beach, is nothing short of breathtaking.

Highlights & What to See

• The Cave Viewing Platform: From the top of the stairs, peer through the cave's two openings to the ocean beyond—a perfect photo op at sunset when the light streams through.
• Beach Access at Low Tide: Check tide times and descend to the sandy beach inside the cave for an up-close perspective of the sculpted dolerite columns and the thunderous surf.
• Nearby Crescent Bay: A short walk from the cave leads to this stunning, secluded beach with towering sea cliffs and excellent surf-watching.
• Port Arthur Historic Site: Combine your visit with the nearby UNESCO World Heritage-listed convict settlement, just a 10-minute drive north.

Suggested Time to Spend

Allow 30–45 minutes to walk the boardwalk, descend to the cave, and soak in the views. If you plan to explore the beach at low tide or take the Crescent Bay walk, budget 1.5–2 hours. Pairing this with a morning at Port Arthur makes a full and rewarding day on the Tasman Peninsula.

Nearby Areas Worth Combining

• Port Arthur Historic Site – a must-see convict-era settlement with guided tours and harbour cruises.
• Tasman Arch & Devil's Kitchen – dramatic coastal rock formations along the same scenic drive.
• Eaglehawk Neck – the narrow isthmus with the infamous 'Dog Line' and Tessellated Pavement.
• Fortescue Bay – a beautiful camping and swimming spot with walking tracks to Cape Hauy.
• Coal Mines Historic Site – a lesser-known convict site with ruins and forest walks.

Please check official sources for current details.