Considered to be the Bali that time forgot for its unspoiled landscape, Nusa Penida (Penida Island) sits about 10 miles (15 kilometers) off the Bali coast, alongside the islands of Nusa Lembongan and Nusa Ceningan. Besides snorkeling and diving—the island is known for mantas and mola-molas (the world’s largest bony fish)—Penida offers unspoilt villages, rugged landscapes, and sacred temples.