Bali’s coastline faces the Indian Ocean on the south and west, and the Bali Sea and Lombok Strait on the northeast - and within 45 minutes by fast boat are two of Indonesia’s most rewarding marine environments: Nusa Penida and Nusa Lembongan. The island-hopping and snorkelling circuit that runs from Sanur and Padangbai is one of Southeast Asia’s most accessible marine day-trip networks, covering manta rays, reef sharks, colourful coral gardens, and open-ocean sailing in a single stretch of coast. Below is a practical guide to the main tour types, operators, prices, and what to look for when booking.
Nusa Penida Snorkelling and Day Trip
Nusa Penida is the largest of the three southeast islands - a rugged limestone plateau rising sharply from the sea, with dramatic cliffs and three exceptional snorkelling sites offshore. A standard guided day trip from Sanur covers:
Manta Point - The most reliable manta ray site in all of Bali. The site sits off the southwest tip of Nusa Penida, where cold upwellings bring plankton that mantas feed on. On a normal dry-season morning (May–October), groups of 4–8 mantas are almost guaranteed. Wingspan on the reef mantas here commonly reaches 3–4 metres. Entry is by boat from the offshore anchorage - no wading from shore. Depth is 8–15 metres, but mantas often feed at the surface, making snorkelling more effective than diving for seeing them.
Crystal Bay - A sheltered bay on Nusa Penida’s west side with calm, clear water and a reef dropping to about 20 metres. Visibility is consistently good: 15–25 metres on most days. The reef is home to turtles, reef fish, and the occasional Mola mola (ocean sunfish) during July–October. This is the calmest and most beginner-friendly site on the circuit.
Batu Bolong - A rock formation between Crystal Bay and Manta Point, often included in extended itineraries. Strong currents make this better for confident swimmers.
Tour prices: shared day trips from Sanur covering all three sites start from approximately USD 40–55 per person (as of 2025), including fast boat transfers, snorkelling equipment, guide, and entrance fees. Private tours with a fixed group run USD 120–180 for a boat of up to 6. Book a Nusa Penida day trip via GetYourGuide or via Klook’s verified Nusa Penida tour - both platforms list cancellation policies clearly.
The fast boat from Sanur takes 30–45 minutes. Sanur Harbour has multiple operators with departures from 7am. The return boat is typically 3:30–5pm.
Nusa Lembongan Island-Hopping
Nusa Lembongan is a smaller, calmer island than Nusa Penida - easier roads, more developed beachside restaurants, and snorkelling that leans more accessible than spectacular. It connects to Nusa Ceningan by a narrow wooden suspension bridge. A half-day or full-day Lembongan trip typically covers:
- Mushroom Bay - the main beach bay on Lembongan’s west side; calm water, clear visibility, good for families
- Devil’s Tear - a rocky platform on the island’s southwest tip where waves crash dramatically into a natural rock pool; no snorkelling here, but a striking spot for photos
- Mangrove Forest boat tour - motorised canoe through the mangrove channels on the island’s east side; 1–1.5 hours, IDR 50,000–80,000 per person
Day trip prices from Sanur: approximately USD 35–50 per person including fast boat and island transport. The crossing takes 25–35 minutes. Rocky Fast Cruises is one of the established operators running regular scheduled services - check their site or GYG for timed departures.
Snorkelling from Amed and Padangbai (East Bali)
North of Candidasa, the water changes character. Amed on Bali’s northeast coast sits in a stretch of coastline facing Lombok and Sumbawa across the Lombok Strait, and the water is cooler and clearer than the south. Shore snorkelling directly from the black-sand beach at Amed yields lionfish, clownfish, moray eels, and - with luck - the Japanese shipwreck lying in 6 metres of water off Jemeluk Bay. The wreck is an easy swim from shore and accessible to all snorkellers. No tour required, but a guide who knows the exact location saves time; budget IDR 100,000–150,000 per person for a 90-minute guided shore snorkel.
Menjangan Island, off the northwest coast near Pemuteran, is a national marine park site with arguably the best coral coverage in Bali - walls dropping to 40 metres and visibility commonly 20–30 metres. Getting here requires transport to Labuhan Lalang (approximately 3.5 hours from Seminyak) plus a boat to the island. Guided snorkelling day trips from Seminyak or Ubud cost USD 65–95 per person including transport, boat transfer, park fee, and snorkelling gear. Menjangan is best as a day trip from Pemuteran if you are already in North Bali.
Sunset Sailing from Seminyak and Canggu
Sunset cruises depart from Seminyak Beach and the fishing pier at Canggu most evenings between 4pm and 6pm. The format varies from sailing catamarans and traditional Phinisi wooden boats to modern catamarans. A 2-hour sunset sail on a Phinisi-style vessel costs approximately USD 45–70 per person as of 2025, typically including snacks and drinks on board. The route follows the coast south toward Uluwatu and back, watching the sun drop toward the Indian Ocean horizon.
For a more structured evening, Jimbaran Bay’s seafood-on-the-beach restaurants operate from approximately 5:30pm with tables set directly on the sand. Fish, prawns, and squid are grilled over charcoal while the sun sets over the bay’s natural harbour. Dinner prices start from approximately IDR 200,000–350,000 per person (as of 2025); most restaurants include fresh coconut or a beer in their set menu.
What to watch for when booking sunset cruises: check whether the boat has life jackets for all passengers, whether drinks are alcoholic or soft only, and what the weather cancellation policy is. Legitimate operators reschedule for heavy swell rather than simply refunding - confirm before you pay.
Practical Notes for Bali Beach Tours
Best months for snorkelling: May–October (dry season) delivers the best visibility and the most reliable manta ray sightings at Manta Point. November–April brings some cloud and occasional rough seas, though many days are still excellent for snorkelling.
What to bring: rash guard or long-sleeve swim top (sun intensity on the water is significant), waterproof sunscreen, motion sickness tablets if prone to sea sickness (the fast boat crossing to Nusa Penida can be choppy in a swell), and your own mask if you prefer a good fit - rental masks are functional but variable in quality.
Tipping: boat guides and local drivers in Nusa Penida work on low base wages. IDR 50,000–100,000 per person per guide is standard for a full-day trip.
Booking platform vs local agent: Booking through GetYourGuide or GetYourGuide Bali day trips gives you documented cancellation policies and buyer protection. Local agents in Sanur or Seminyak can be cheaper by 15–25% but have no formal recourse if the tour changes or cancels without notice.