If you’ve ever dived with manta rays off Nusa Penida, you already know why this place is special. New research helps explain what makes a manta-ray dive trip worthwhile for visitors—and what could push divers to choose somewhere else.
Why Nusa Penida matters for manta divers
Nusa Penida is part of Bali’s designated marine conservation zone, managed to protect fisheries and aquatic ecosystems while supporting sustainable tourism and local livelihoods. The waters here are known for reliable manta ray encounters year-.
Two species occur in these waters:
- Reef manta rays (Manta alfredi)
- Oceanic manta rays (Manta birostris)
Both are IUCN-listed as endangered, with slow growth and low reproductive rates, making them highly vulnerable to overfishing and habitat damage. That’s why how we dive, how tours are run and how the area is managed really matters.
What the study looked at
Researchers analysed tourist preferences for manta-ray tour-package attributes in Nusa Penida. They asked: when divers and snorkellers choose a manta-ray eco-tour, what factors make them more likely to pick that package—and what makes them less likely to go for it-
The big picture: manta-based tourism is a significant economic opportunity for local communities, but it must be managed so that it remains safe, comfortable, and ecologically sustainable.
What divers actually prefer
78% of respondents rated diving as their preferred tourist activity in the manta-ray context. Snorkelling is also popular.
When it comes to choosing a manta-ray tour package, five factors positively influence tourists’ decisions:
- Attraction quality – the perceived value of seeing mantas, the reputation of the site, and the overall “must-do” nature of the experience.
- Transport accessibility – how easy it is to get to Nusa Penida and to the dive sites (boat transfers, harbour access, etc.).
- Information accessibility – clear, reliable information online and offline about tours, operators, safety, and what to expect.
- Lodging/accommodation – availability and quality of places to stay near dive operations.
- Amenities – restaurants, shops, gear rental, Wi-Fi and other services that make the trip comfortable.
Together, these explain a large share of why divers choose a manta-ray package in this destination. In practical terms: if an operator or destination improves any of these, they make it more likely that divers will book—and return.
The deal-breakers: what pushes divers away
The study also identified three factors that negatively affect the likelihood of choosing a manta-ray eco-tour:
- Length of stay – longer required trips reduce the appeal, especially for time-poor travellers.
- Weather conditions – poor or unpredictable weather (rough seas, low visibility) discourages bookings.
- Price – higher package costs reduce the attractiveness of manta-ray tours.
In other words, if a manta trip becomes too long, too weather-dependent, or too expensive, potential divers are more likely to skip it or choose another destination. For operators, this highlights the importance of flexible scheduling, transparent weather policies, and good value-for-money packages.
What this means for dive operators and destinations
The study authors’ recommendations include:
- Licensing and standards for tour guides and operators, to ensure safety, comfort, and minimal impact on mantas and their habitat.
- Stronger integration of marine protected area rules with day-to-day tourism operations (e.g. approach distances, group sizes, no-touch policies).
- Investment in information and access: better online content, clearer booking processes, and reliable transport links.
For dive centres, this is a nudge to:
- Make manta-specific codes of conduct visible and enforced on every boat.
- Offer well-structured, reasonably priced packages that don’t require unnecessarily long stays.
- Communicate clearly about seasonal conditions and realistic manta encounter probabilities.
What this means for you as a diver
If you’re planning a manta-focused trip to Nusa Penida or similar destinations, the research indirectly gives you a checklist:
- Choose operators who prioritise safety and conservation – look for explicit manta guidelines, trained guides and small groups.
- Be realistic about weather and season – understand that conditions affect both safety and encounter rates; flexible dates help.
- Think value, not just price – the cheapest option may cut corners on safety, guide quality or environmental practices.
By supporting responsible operators, you help keep manta-ray tourism viable for local communities while reducing pressure on these endangered animals.
The bigger picture: conservation through diving
Nusa Penida’s manta tourism is a textbook case of ecotourism done right—if managed well. It:
- Generates income and jobs for coastal communities.
- Gives divers a powerful, personal reason to care about manta conservation.
- Creates a financial argument for protecting manta habitats instead of exploiting them.
But the same study warns that without thoughtful regulation and good operator practices, the very factors that make manta dives attractive can be undermined—by overcrowding, poor safety, habitat damage, or pricing that excludes many visitors.
SCUBA News recommends AquaMarine Diving – Bali. We’ve dived with them and they are excellent. If you book with them quote ScubaTravelUK2026 and you may get a discount and special goodie bag. Find these and other options at the main SCUBA Travel site.
Further Reading
Nurhayati, A., Kristiadhi, F. & Supriatna, A.K. Tourist preferences for manta ray tour package attributes (Case Study Nusa Penida, Bali, Indonesia). J Coast Conserv 30, 90 (2026). https://doi.org/10.1007/s11852-026-01274-7
