Angel’s Billabong is a spectacular rock formation on Nusa Penida island's southwestern cliff edges. It's nearby Pasih Uug (Broken Beach), another popular site with unique limestone formations. The naturally formed rock lagoon offers a scenic seascape. You can descend into its crystal-clear rock pools for a swim or a soak, but only during low tide. The rock pools are one of the must-sees for visitors to Nusa Penida.