The Nusa Islands sit just off Bali’s south-east coast — three islands of cliff and reef that hold the best snorkelling within a day of Benoa. Most visitors reach them on a packed speedboat tour; a private boat charter changes the day entirely. You set the pace, you carry your own snorkelling gear and lunch, and you arrive at Manta Bay and Kelingking before the crowds — or after them. This is the plain-English guide to a Bali to Nusa Penida day trip by private boat: what you see, full day versus half day, which boat, what it costs and when to go.
A Bali to Nusa Penida day trip, by private boat
Nusa Penida and its smaller neighbours Nusa Lembongan and Nusa Ceningan lie about forty minutes across the Badung Strait from Benoa, the deep-water harbour below Nusa Dua. A private day charter takes the whole boat — not a seat on a shared speedboat — so the day is yours: snorkel where the water is clearest, linger at the cliff you came for, and have lunch at anchor away from the day-tour fleet. There are two ways to do it: a full day of eight hours that crosses to the islands for snorkelling and the famous cliffs, or a four-hour sunset half-day that stays on the south coast. The sample below sets out both, stop by stop.
You arrive at Manta Bay and Kelingking before the crowds — or after them.
Nusa Penida: Manta Bay, Crystal Bay & the Kelingking cliff
Penida is the big, dramatic island. Off its south-west corner, Manta Bay is a year-round cleaning station where oceanic manta rays glide in to be groomed by cleaner fish — snorkel above them in good visibility and they pass within a few metres. A short hop north, Crystal Bay is the calm, clear-water swim stop, and in the cooler months (roughly July to October) the deep water offshore is where divers hope to glimpse the strange, disc-shaped mola mola. Above the water, the Kelingking headland — the dinosaur-spine cliff over a sliver of white-sand beach, also called T-Rex Bay — is the single most photographed coastline in Bali, and it looks its best from the sea. Broken Beach and the Angel’s Billabong rock pool sit just along the same wild south coast.
Nusa Lembongan: Mushroom Bay & the mangroves
Smaller, greener and far gentler, Nusa Lembongan is the day’s soft counterpoint. Mushroom Bay is the postcard anchorage — a curve of pale sand and calm turquoise water made for swimming and paddleboards — while the island’s north-east edge is fringed with mangrove channels you can drift through by tender. It is the place to slow down: a long lunch at anchor, a swim, and the short crossing back to Bali in the late-afternoon light. Many full-day charters pair Penida’s headline sights in the morning with a relaxed Lembongan afternoon.
Full day or half-day sunset?
Choose the full day (eight hours) if the islands are the point: the manta snorkel, Crystal Bay and the Kelingking cliff all need the crossing and the daylight. Choose the half-day (four hours, late afternoon) if you want an easy sunset cruise on the south coast without a full day at sea — a swim, sundowners and the flat-horizon sunset, back after dark. Families and first-timers often take the half-day; snorkellers and photographers take the full day. Either way it is a private charter of the whole vessel, not a per-seat tour.
The manta snorkel, Crystal Bay and the Kelingking cliff all need the crossing and the daylight.
Which boat — and what a day charter costs
Bali’s day fleet runs from intimate 8-to-12-guest cruisers to wide-beam boats that carry large groups in comfort. Pricing is per boat, not per person, so a day works out well for a family or a group of friends. As a guide, a private full-day charter (8 hours, Nusa Penida and Lembongan) starts from about IDR 19.5 million for a smaller cruiser and rises to around IDR 65 million for the 50-guest Gihon’s Voyage; a four-hour sunset half-day starts from about IDR 15 million. Each vessel carries a certified skipper and crew, the cruising permit and insurance, snorkelling and fishing gear, and water, soft drinks, snacks and fresh fruit — larger boats add a BBQ lunch and paddleboards. Browse the day fleet to see each boat and its exact rate.
When to go, and how to book
The dry season, April to October, brings the calmest crossing and the clearest water — May to September is the sweet spot for the manta snorkel and Crystal Bay. The wet season (November to March) is better suited to the shorter, sheltered sunset half-day. To book, pick a boat from the day fleet and send an inquiry: our charter desk confirms the date and the price, holds the boat, and arranges the day before anything is paid. Same-day and next-day departures are often possible in season.
