Nusa Penida
Nusa Penida, with Nusa Lembongan and Nusa Ceningan, sits in the Lombok Strait about 30-45 minutes by fast boat from Sanur on Bali's east coast. Two animals drive the traffic. Reef mantas are resident — a photo-ID study logged 624 individuals across 5,913 sightings at Manta Bay and Manta Point between 2012 and 2018, with cleaning and courtship concentrated at Manta Point and courtship peaking in April and May. The sunfish is Mola alexandrini, the bump-head or giant sunfish, confirmed morphologically and genetically; images previously reported as Mola mola were re-examined and reidentified. Divers meet them mostly between about July/August and November, when southeast-monsoon upwelling pushes cold Indian Ocean water up the southern and western coasts. That upwelling is also the catch: thermoclines at Crystal Bay drop to roughly 18-20°C and have been reported near 16°C while the surface sits near 28°C. The whole area sits in the Indonesian Throughflow. Currents are the real hazard here — fast, tidal, and prone to down-currents that have killed divers at Crystal Bay and Blue Corner. The area is a 20,057-hectare marine protected area, declared in 2010 and fully gazetted in 2014, and it is heavily used: average annual boat numbers at Manta Point rose 153% between 2012 and 2017.
What makes it special
- Resident reef manta population — 624 individuals photo-identified at Manta Bay and Manta Point between 2012 and 2018, with annual abundance estimates rising from about 170 in 2012 to 447 in 2022
- Mola alexandrini, the bump-head or giant sunfish, genetically and morphologically confirmed here — not Mola mola — visiting cleaning stations from roughly July/August to November
- A 20,057-hectare marine protected area with a three-zone, seven-subzone plan and a per-day retribution funding its management unit
- Day-diveable from Bali: 30-45 minutes by fast boat from Sanur, no liveaboard or domestic flight required
Price range
$
Trip length
3–7 days
Diver level
Advanced open water
Trip type
Land based, Day trip
Price is per person for a typical trip, excluding international flights ($ = under $2,000).
Cheap by dive-travel standards. A two-tank Nusa Penida day trip including Manta Point runs roughly IDR 1.6-1.95 million (about $100-125) with gear and boat; staying on Lembongan or Penida and diving daily for a week lands well under $2,000 per person excluding flights. Add the Nusa Penida marine protected area retribution of IDR 100,000 (about $6) per person per day for anyone entering the water, an island entry fee of IDR 25,000 per adult and IDR 15,000 per child, and the one-off Bali provincial tourist levy of IDR 150,000 (about $10) paid via the Love Bali portal.
Best time to dive
- Current
- Strong
- Water temp
- 18–29°C (coldest Aug, warmest Jan)
- Visibility
- 10–30m — Commonly 15-30m in the November-May warm season. Upwelling months are often greener and more plankton-laden, sometimes down to 10m — the same water that brings the sunfish cuts the visibility.
- Getting there
- Easy — Day trips from a coastal base, about 1h from the airport, then a short boat.
- Experience
- Nusa Penida is routinely sold to Bali holidaymakers on a fresh Open Water card, and that is the honest problem with the place. The shallow manta cleaning station at 10-12m can be dived by a supervised beginner in calm conditions, and Manta Bay and Mangrove Point are genuinely easy. Everything else — Crystal Bay, Toyapakeh, Blue Corner, Ceningan Wall, the north-coast drifts — needs current experience, negative entries, reliable buoyancy and a guide who reads tide tables. The sunfish typically sit below 30m at Crystal Bay, which is a deep dive on top of a cold, current-swept one. Operators who match sites to conditions and to the diver in front of them exist; operators who put four strangers on a boat and send them to Blue Corner also exist.
Nearest airports
- DPS — I Gusti Ngurah Rai International Airport (Denpasar, Bali) (Direct international and domestic arrivals; road transfer of roughly 30-45 minutes to Sanur harbour, then a fast boat to Nusa Penida or Nusa Lembongan)
Permit required
No dive permit as such, but the Nusa Penida marine protected area levies a per-person, per-day retribution on snorkelling and diving, collected by the Klungkung Regency government and the MPA management unit. Payment is now largely cashless. Diving is by licensed local operator; the MPA zoning plan reserves a 12.2 km² marine tourism zone in which fishing is prohibited.
Nusa Penida MPA retribution: IDR 100,000 (about $6) per foreign visitor per day to dive, snorkel or swim in the protected area. Separate island tourism retribution of IDR 25,000 per adult and IDR 15,000 per child for entering Nusa Penida, Lembongan or Ceningan. The Bali-wide tourist levy of IDR 150,000 is a separate, one-off provincial charge.
Marine life
Sightings are never guaranteed — the bars show typical likelihood by month.
| Month | Likelihood |
|---|---|
| January | rare |
| February | rare |
| March | rare |
| April | rare |
| May | rare |
| June | rare |
| July | peak season |
| August | peak season |
| September | peak season |
| October | peak season |
| November | occasional |
| December | rare |
Present in the area year-round from the surface to well below recreational depth, but divers encounter them mainly between about July/August and November — the locally named sunfish season — when southeast-monsoon upwelling brings cold Indian Ocean water up the southern and western coasts. Crystal Bay is the best-known site, with Blue Corner, Toyapakeh and the north-coast drifts also producing them. Encounters are usually deep and brief, and nothing about them is scheduled.
| Month | Likelihood |
|---|---|
| January | commonly seen |
| February | commonly seen |
| March | commonly seen |
| April | peak season |
| May | peak season |
| June | commonly seen |
| July | commonly seen |
| August | commonly seen |
| September | commonly seen |
| October | commonly seen |
| November | commonly seen |
| December | commonly seen |
Resident year-round at both Manta Bay and Manta Point. A photo-ID study identified 624 individuals from 5,913 sightings between January 2012 and April 2018, with 82% of individuals re-sighted more than once. Manta Point is the cleaning and courtship site — courtship peaked in April and May, with sightings roughly doubling in May. Manta Bay is a foraging ground used heavily by juvenile males. Manta Point is regularly cancelled in swell, so the animals are more reliable than the dive.
| Month | Likelihood |
|---|---|
| January | rare |
| February | rare |
| March | rare |
| April | rare |
| May | rare |
| June | rare |
| July | rare |
| August | rare |
| September | rare |
| October | rare |
| November | rare |
| December | rare |
Pelagic thresher has been recorded on baited remote underwater video around Nusa Penida, but this is a survey record, not a diver-reliable encounter. Malapascua remains the destination if threshers are the goal.
| Month | Likelihood |
|---|---|
| January | rare |
| February | rare |
| March | rare |
| April | rare |
| May | rare |
| June | rare |
| July | rare |
| August | rare |
| September | rare |
| October | rare |
| November | rare |
| December | rare |
Documented in benthic and roving survey work around Nusa Penida but not a dependable sighting on a two-dive day trip. Most likely on the north-coast reefs early in the morning.
| Month | Likelihood |
|---|---|
| January | commonly seen |
| February | commonly seen |
| March | commonly seen |
| April | commonly seen |
| May | commonly seen |
| June | commonly seen |
| July | commonly seen |
| August | commonly seen |
| September | commonly seen |
| October | commonly seen |
| November | commonly seen |
| December | commonly seen |
Recorded alongside green turtles on routine surveys in the MPA. Seen on the coral slopes at Toyapakeh, SD and Mangrove Point rather than at the manta or mola sites.
| Month | Likelihood |
|---|---|
| January | occasional |
| February | occasional |
| March | occasional |
| April | occasional |
| May | occasional |
| June | occasional |
| July | occasional |
| August | occasional |
| September | occasional |
| October | occasional |
| November | occasional |
| December | occasional |
Seen regularly on the shallow reefs around Nusa Penida and Lembongan, working along the coral or heading up for air. No seasonality reported — it is a reef resident rather than a migrant.
| Month | Likelihood |
|---|---|
| January | occasional |
| February | occasional |
| March | occasional |
| April | occasional |
| May | occasional |
| June | occasional |
| July | occasional |
| August | occasional |
| September | occasional |
| October | occasional |
| November | occasional |
| December | occasional |
Found tucked under coral heads and table corals on the shallow plateaus at Toyapakeh, SD and Mangrove Point. Present year-round, easy to miss unless you look under overhangs.
| Month | Likelihood |
|---|---|
| January | occasional |
| February | occasional |
| March | occasional |
| April | occasional |
| May | occasional |
| June | occasional |
| July | occasional |
| August | occasional |
| September | occasional |
| October | occasional |
| November | occasional |
| December | occasional |
Recorded on roving surveys and baited remote underwater video deployments around Nusa Penida. Usually seen passing in the blue along the channel walls and north-coast drifts.
| Month | Likelihood |
|---|---|
| January | occasional |
| February | occasional |
| March | occasional |
| April | occasional |
| May | occasional |
| June | occasional |
| July | occasional |
| August | occasional |
| September | occasional |
| October | occasional |
| November | occasional |
| December | occasional |
Hunting in the tidal flow at Toyapakeh, Blue Corner and the channel walls. More frequent when the current is running hard, which is also when the diving is hardest.
| Month | Likelihood |
|---|---|
| January | commonly seen |
| February | commonly seen |
| March | commonly seen |
| April | commonly seen |
| May | commonly seen |
| June | commonly seen |
| July | commonly seen |
| August | commonly seen |
| September | commonly seen |
| October | commonly seen |
| November | commonly seen |
| December | commonly seen |
Recorded regularly on survey dives across the Nusa Penida MPA through the year. Most often seen resting or grazing on the north-coast reefs and at Mangrove Point.
| Month | Likelihood |
|---|---|
| January | commonly seen |
| February | commonly seen |
| March | commonly seen |
| April | commonly seen |
| May | commonly seen |
| June | commonly seen |
| July | commonly seen |
| August | commonly seen |
| September | commonly seen |
| October | commonly seen |
| November | commonly seen |
| December | commonly seen |
Good variety on the channel walls at Ceningan and on the shallow plateaus, though Nusa Penida is a big-animal destination first — for serious macro, Lembeh or Amed are better use of the time.
| Month | Likelihood |
|---|---|
| January | occasional |
| February | occasional |
| March | occasional |
| April | occasional |
| May | occasional |
| June | occasional |
| July | occasional |
| August | occasional |
| September | occasional |
| October | occasional |
| November | occasional |
| December | occasional |
Seen on the north-coast reefs and at Toyapakeh, often as juveniles; a coral-restoration site in the MPA has recorded juvenile whitetips. Numbers are modest compared with Komodo or Raja Ampat — this is not a shark destination.
Dive sites
Worth knowing before you book
- The currents are dangerous, not merely sporty. Down-currents at Crystal Bay and Blue Corner have dragged divers deep, caused decompression illness and killed people; Crystal Bay was closed after two deaths on consecutive days in 2012, and other divers have been swept away and recovered days later or not at all.
- The area is sold hard to Bali beginners. An Open Water card and a handful of logged dives is not the level most of these sites actually require, and the sunfish dive at Crystal Bay is deep, cold and current-swept at once.
- Cold is a genuine comfort and safety factor. Between July and October the thermocline at Crystal Bay drops to roughly 18-20°C, and 16°C has been reported, while the surface stays near 28°C — a 3mm suit is not enough, and hoods are normal in mola season. The sunfish window is an upwelling artefact, not a schedule; they are present year-round but usually below recreational depth.
- Manta Point faces the open Indian Ocean and is frequently rough. Operators cancel it in large swell, and bad-weather stretches of a week or two happen several times a year.
- Crowding is severe at the headline sites. Manta Point can take 35-40 boats arriving in waves from mid-morning, and average annual boat numbers there rose 153% between 2012 and 2017. Early departures are the only real defence.
Sources & last checked
Checked August 2026
This is a researched draft, not yet human-verified. The seasonality and logistics are drawn from the sources below — confirm specifics (permits, fees, closures) with an operator before you book.
- Contrasting Habitat Use and Population Dynamics of Reef Manta Rays Within the Nusa Penida Marine Protected Area, Indonesia — Frontiers in Marine Science
- Rapid physiological colouration change is a challenge — but not a hindrance — to successful photo identification of giant sunfish (Mola alexandrini, Molidae) — Frontiers in Marine Science
- Estimating the abundance and population trends of reef manta rays (Mobula alfredi) in Nusa Penida, Bali, Indonesia — Environmental Biology of Fishes
- Nusa Penida MPA — Coral Triangle Center
- Upwelling variability along the southern coast of Bali and in Nusa Tenggara waters — Ocean Science Journal
- Sea Surface Temperature and Salinity in Lombok Strait Reconstructed From Coral Sr/Ca and δ18O, 1962–2012 — Frontiers in Climate
- Quarterly Report Penida August 2025 — Indo Ocean Project
- Tourists Must Pay Levy When Visiting Bali's Nusa Penida — The Bali Sun
- Diving Bali's Most Notorious Dive Site — Alpha Gentlemen
- The ocean sunfishes (family Molidae): Recommendations from the IUCN Molidae review panel — Marine Policy (ScienceDirect)
- Sanur - Nusa Penida ferry, tickets & schedules — Ferryhopper
- Bali to Nusa Penida — Fast Boats, Ferries & Prices — NusaPenida.org
Note on the data: Manta residency, site-level behaviour (Manta Bay foraging vs Manta Point cleaning and courtship), the April-May courtship peak and the 153% rise in boat traffic all come from the 2019 Frontiers in Marine Science photo-ID study. The 2012-2022 abundance trend (170 to 447) is from a 2025 Environmental Biology of Fishes paper whose full text is paywalled — only the abstract summary was read, so treat the exact figures as second-hand. Sunfish species identity (Mola alexandrini, not Mola mola) and the July/August-November encounter window are from the 2023 Frontiers in Marine Science photo-ID paper by the Bali Ocean Sunfish Research Project. Upwelling timing (June-October, southeast monsoon) and Nusa Penida SST are from published oceanographic and coral-proxy work. Thermocline figures of 18-20°C, and reports near 16°C, rest on dive-operator accounts rather than measurements — flagged in waterTempNotes. Fatalities and down-current incidents are documented in dive-media and forum accounts rather than an official incident register; the 2012 double fatality and Crystal Bay closure is reported consistently across multiple accounts but no primary coroner or authority source was located. MPA area, zoning and the retribution amounts come from the Coral Triangle Center and Klungkung Regency reporting; the underlying regional regulations (Klungkung Perda 5/2018, Bali Perda 7/2021) were cited in secondary reporting rather than fetched directly. Mola alexandrini has no confirmed published IUCN category — the IUCN Molidae review panel listed it as awaiting a first assessment — so it is coded unknown. All site coordinates are approximate positions from island geography and operator maps, not surveyed dive-site GPS. Water temperature: The maxC figures track reconstructed sea-surface temperature at Nusa Penida, which averages about 28.8°C in December-February and 27.8°C in June-August — the surface barely changes. The minC figures are interpolated to represent the thermocline divers actually hit during southeast-monsoon upwelling, widely reported at 18-20°C at Crystal Bay between July and October and occasionally near 16°C; those are dive-operator and dive-guide reports, not instrument records. Access: Fly into Denpasar (DPS), transfer 30-45 minutes by road to Sanur harbour, then a 30-45 minute fast boat to Toyapakeh or Banjar Nyuh on Nusa Penida, or to Nusa Lembongan; day trips from Bali run the same crossing and return the same afternoon.