Broken Beach is one of the strangest pieces of coastal geology in Indonesia — a perfect circular bay enclosed on all sides by 50-metre cliffs except for a single sea-tunnel that connects it to the Indian Ocean. The Indonesian name *Pasih Uug* translates as "Broken Beach": the bay was once a sea cave whose roof collapsed, leaving the cliff ring intact. From a helicopter, the full amphitheatre and the tunnel are visible in a single frame — impossible from any ground angle.
The place
What is Broken Beach
Geologically, Pasih Uug is a collapsed sea-cave. The limestone roof that once spanned the bay gave way to wave action and gravity over thousands of years, leaving a roughly 200-metre-wide circular pit open to the sky, ringed by cliffs, with a single 30-metre-wide arch at the seaward side that still lets the ocean wash in and out.
Inside the bay, the water level rises and falls with the tide, but the cliffs prevent any beach access from above — there is no path down, and the tunnel is too narrow and surge-prone for boats to enter safely. The only way to "visit" Broken Beach is to walk the circular path around the cliff rim, which takes about fifteen minutes.
The site sits on Nusa Penida's exposed west coast, three minutes' flight north of Manta Point and five minutes from Kelingking. It is part of the same limestone formation that produces the T-Rex cliff and the Karang Sari walls — the entire south-west coast of Nusa Penida is one continuous block of uplifted reef limestone, sculpted differently at each headland by the local wave pattern.
The bay holds a small population of reef fish that get washed in through the arch and trapped inside; on calm days the water clarity inside the amphitheatre is exceptional.
The aerial view
From the air
The helicopter approach to Broken Beach holds altitude over the cliff rim, which gives you the single frame that defines the place — a near-perfect circle of jade water enclosed by limestone walls, with the tunnel arch on the seaward side.
The **perfect circle** of the bay. From the rim path it looks like an irregular cove; from the
The **tunnel arch** in profile. From the cliff rim the arch is hidden by the cliff wall; from
The **wave pattern** entering and exiting the tunnel — visible as a pulsing flow line through
The **colour gradient** inside the bay vs. outside — the trapped water is paler and clearer