Sasi is a customary closed-season practice rooted in Melanesian adat (customary law) that prohibits harvesting marine or terrestrial resources from a designated area for a set period. In Raja Ampat, sasi is still actively enforced by marga and keret clans across Waigeo, Misool, Gam, and the smaller island groups — and for any investor, resort developer, or tourism operator working near coastal Papuan land, it functions as an invisible boundary that no government permit can override on its own.
Understanding sasi is not optional due diligence. It is the starting point. A lease signed with a clan leader means nothing if the reef in front of your proposed dive resort has been declared sasi laut — a closed-season marine area — by the broader community. That closure may last weeks or years. It may restrict access for everyone, including your guests.
The Mechanics of Sasi: Who Declares It and What It Covers
Sasi operates through community authority, not government decree. A clan leader, village head, or a recognized religious figure — depending on which variant of sasi the village practices — formally opens or closes a sasi area through a ceremony. In the Christian-influenced villages of northern Raja Ampat, the church often co-leads the ritual. In southern Misool and parts of Waigeo where Islamic practice predominates, the opening may align with communal religious gatherings.
Two categories dominate in Raja Ampat:
- Sasi Laut (Marine Sasi)
- Closes a defined reef, seagrass bed, or fishing ground to all extraction — no harvesting of fish, sea cucumber, lobster, trochus shells, or other marine organisms. The closure zone is typically demarcated by physical markers (bamboo poles, flags) or simply by communal knowledge of the boundary. Duration varies widely: a few months, a full year, sometimes longer depending on perceived resource recovery.
- Sasi Darat (Terrestrial Sasi)
- Closes land-based resources — fruit trees (particularly sago, durian, breadfruit), forest products, or specific garden plots. Less directly relevant to coastal tourism investment, but it surfaces in resort development when a site includes land that a clan has placed under sasi for agricultural or ritual reasons.
Once a sasi is declared closed, violating it is not merely a social offence. Sanctions range from community fines to confiscation of gear, and in the context of ongoing land negotiations, a violation by an outside operator can collapse trust irreparably. There is no regulatory body to appeal to. The clan community is the authority.
How Sasi Intersects with Raja Ampat’s Formal MPA Zoning
Raja Ampat administers a network of seven Marine Protected Areas covering approximately 13,550 km² of marine area — part of the broader Bird’s Head Seascape and Indonesia’s national MPA system. The formal management framework operates through a UPTD with BLUD status: the Raja Ampat Marine Park Authority, which patrols jointly with the Indonesian Police and Navy, collects the environmental service fee (IDR 700,000 per foreign visitor, valid twelve months), and enforces no-take zones, mooring requirements, and development prohibitions within designated core zones.
Sasi and the MPA exist on parallel tracks. They are not the same thing, they do not cancel each other out, and a marine park permit does not authorise you to use an area that a clan has placed under sasi. The formal MPA system defines where government law applies. Sasi defines where community law applies. In practice, both apply simultaneously across most of Raja Ampat’s coastline.
This overlap creates a three-layer access question for any coastal project:
- Is the site within a formal MPA zone? If so, what is the zone classification — core no-take, limited utilization, or tourism utilization? Core zones prohibit construction entirely. Tourism utilization zones permit carefully managed activity with full AMDAL environmental impact assessment.
- Who holds adat rights over the coastal land and adjacent reef? Under Indonesia’s Basic Agrarian Law (UUPA, Law No. 5/1960) and the Papua Special Autonomy framework (Law 21/2001, amended by Law 2/2021), hak ulayat — customary community land rights — are constitutionally recognized. In Raja Ampat, most coastlines and small islands are marga or keret clan territory, frequently unregistered with BPN (the national land agency), yet enforceable under adat.
- Is any adjacent reef or coastal area currently under active sasi, or likely to be placed under sasi during your operating season? This is the question that investors rarely ask and frequently wish they had.
Conservation NGOs working in the Bird’s Head Seascape, including several that collaborate with the Marine Park Authority, have documented cases where sasi closures have effectively extended the reach of formal no-take zones into areas the MPA framework alone might not reach. Sasi, in other words, sometimes does conservation work that regulation cannot.
What Sasi Means for Tourism Operators in Practice
For a dive resort, sasi laut is directly operational. If the house reef or the primary dive site accessible from your property is under a closed-season declaration, your guests cannot enter that water for harvesting activities — and depending on the community’s interpretation, snorkelling and diving itself may be subject to negotiation during a closed period, particularly if the reef in question is one the clan manages primarily as a fisheries resource rather than a tourism asset.
This is not hypothetical. Several villages around Gam Island and Kri have rotated sasi closures on adjacent reefs as part of managed conservation agreements. When the closure is open, dive tourism revenue flows. When the reef is under sasi, the village community — not the resort — determines whether recreational diving continues. Resorts that negotiated this upfront as part of their community partnership agreements have operated with far less friction than those that assumed a land lease settled the question.
For resort siting specifically, the implications are significant:
- Waterfront and over-water structures built on or immediately adjacent to a marga’s reef territory may be interpreted as encroaching on the sasi zone itself, regardless of what the building permit says.
- Jetty construction — already restricted under MPA zoning and requiring high-level approval for new structures inside marine park boundaries — intersects with sasi when the seabed in front of a proposed jetty is under customary management. The 2025 revocation of four nickel mining permits in Raja Ampat and the broader enforcement actions on unauthorized jetties signal that the government is willing to act when conservation rules are violated. Sasi violations are a different category, but community-backed resistance to an encroaching jetty can trigger formal regulatory scrutiny as well.
- Guest activities such as collecting shells, spearing fish (already banned under shark sanctuary rules), or even harvesting coconuts on clan-managed land may constitute sasi violations that create serious diplomatic problems, regardless of liability waivers signed at check-in.
If you are evaluating a site and the seller or agent does not raise sasi as a topic, raise it yourself. If they cannot tell you whether the adjacent reef has an active or historical sasi designation, that is a due diligence gap — not a clean title.
Ready to assess a specific site’s sasi and adat land exposure before committing? Plan your approach with our concierge — we can connect you with local customary-law facilitators and community representatives who can give you a ground-level read before you travel.
Sasi, FPIC, and the Social License Problem
Indonesia’s Papua Special Autonomy law recognizes Orang Asli Papua (OAP) as a specifically protected indigenous group with strengthened land and resource rights. It obliges local government to protect hak ulayat and enables special regional regulations — Perdasus and Perdasi — governing consent and benefit-sharing. Free, Prior, and Informed Consent (FPIC) is not merely an NGO aspiration in this context; it is a requirement embedded in the legal framework for projects affecting Papuan customary land.
Sasi is, in effect, one expression of FPIC in practice. When a clan declares a sasi closure, they are exercising collective decision-making authority over a resource that belongs to them under adat. The investor who has not built a genuine relationship with the community — one that extends well beyond a signed lease agreement with a single clan leader — will discover this the first time a sasi is declared over the reef in front of their resort.
The documented pattern across Raja Ampat and broader Papua is consistent: tourism and resort projects that hit disputes most often ran into trouble not because of paperwork failures, but because they treated a signature as a social license. A clan agreement binds the signatory. It does not automatically bind the broader marga, does not bind younger members who may challenge the authority of the elder who signed, and does not bind neighbouring clans whose territory may overlap. Rival overlapping claims, demands to renegotiate, access-blocking, and staff conflicts have all appeared in reported cases across Raja Ampat and eastern Indonesia.
Sasi governance is one of the places where you can see this dynamic most clearly. A clan that feels respected — that has been properly consulted, that receives fair and ongoing benefit from a tourism operation, that retains real authority over the resources they manage — will manage their sasi in ways that accommodate the operation. A clan that feels bypassed will use every tool available to them, sasi included.
The Homestay Model and Sasi: A Different Relationship
Raja Ampat’s community homestay movement — the more than one hundred locally owned Papuan homestays clustered around Waigeo, Gam, Kri, Mansuar, Arborek, and Misool — operates inside the sasi system rather than in tension with it. Because homestays are family-run and family-owned, and because the owners are themselves clan members, the relationship between the business and the sasi governance structure is internal. The homestay family knows when the reef is closed. They plan around it. They communicate it to guests as a feature of authentic village life rather than a restriction.
For foreign investors, the homestay model signals something important about how to structure any tourism operation in Raja Ampat. The most durable structures are those where the Papuan community retains real ownership and decision-making authority — not a nominal partnership where a foreign entity drives all operational decisions. National MSME-scale rules already bar foreign PT PMA ownership of micro and small accommodation, which achieves a practical effect similar to the regency’s policy intent that homestay revenue stay in Papuan hands. But the underlying principle goes beyond legality: community ownership means sasi governance and business governance align rather than conflict.
Practical Steps Before Any Coastal Site Commitment
There is no registry of sasi designations. There is no public database you can query. The knowledge lives with the village and the clan. This means fieldwork is irreplaceable.
Before committing to any coastal or island site in Raja Ampat:
- Identify the marga or keret clan(s) holding adat rights over both the land and the adjacent reef. In Raja Ampat this is usually determinable through the village head (kepala kampung) and local customary council (Lembaga Masyarakat Adat).
- Ask directly whether any part of the site or adjacent reef has been under sasi in the last five years, and on what cycle. Understand whether the closure is periodic (annual rotation) or event-driven (resource depletion response).
- Understand whether the community views recreational diving and snorkelling as categorically separate from harvesting under their sasi rules, or whether the two are treated together. This varies by village and has to be negotiated, not assumed.
- Map the overlap between the site and formal MPA zoning using the Raja Ampat Marine Park Authority’s publicly available zone maps. Core zones are absolute prohibitions; tourism utilization zones require permit and AMDAL; the boundary between the two is not always obvious on the ground.
- Budget time — multiple visits, multiple conversations, facilitated by someone with genuine community relationships. A site visit by a foreign investor arriving by fast ferry from Waisai for two days is not due diligence on sasi. It is tourism.
The Waisai-Sorong ferry journey, roughly two to three hours each way, is a useful metaphor for the pace of trust-building in Raja Ampat. Things move at their own speed. Investors who work with that pace rather than against it consistently report better outcomes than those who try to compress community engagement into a transaction timeline.
Thinking through a specific investment structure and how sasi and adat rights factor into your risk profile? Connect with our concierge via WhatsApp or the contact form — we can help you frame the right questions before you’re on the water.
Frequently Asked Questions
Can a government permit override a sasi closure in Raja Ampat?
No. A government tourism or building permit addresses your legal relationship with the Indonesian state. Sasi is a customary community governance mechanism operating under adat authority, which is separately recognized under Indonesia’s Constitution (Article 18B(2)) and the Papua Special Autonomy framework. The two systems run in parallel. A permit does not extinguish sasi rights, and a community can enforce a sasi closure against a permitted operator through social and legal means available under customary and national law.
How long does a sasi laut closure typically last in Raja Ampat?
Duration varies considerably by village, resource type, and the specific governance customs of the marga involved. Some closures run for a single growing or spawning season — a few months. Others last a full year or longer. A few documented closures in the Bird’s Head Seascape region have extended for multiple years when communities determined that resource recovery required it. There is no standardized cycle, which is exactly why site-specific inquiry with the relevant clan is essential before any investment commitment.
Does sasi apply to dive tourism, or only to fishing and harvesting?
The traditional application of sasi laut is to resource extraction — fishing, shellfish collection, sea cucumber harvest, and similar activities. Recreational diving and snorkelling are generally not categorized as harvesting under sasi. However, the boundary is community-defined, not legally codified, and in villages where reef tourism is newer or where the community is actively negotiating the terms of tourism access, some clans have used sasi governance frameworks as a lever to define the conditions under which any marine access is permitted. The only reliable answer for a specific site is a direct conversation with the marga holding rights over that reef.
How does sasi relate to the Raja Ampat MPA entrance fee system?
They are entirely separate. The MPA entrance fee — IDR 700,000 for foreign visitors, IDR 425,000 for domestic, valid for twelve months from purchase — is an environmental service fee collected by the Raja Ampat Marine Park Authority (UPTD BLUD) to fund marine conservation, patrols, and management across the formal MPA network. Sasi is a customary community practice with no fee attached. Paying the MPA tag does not grant any right to enter or use an area under sasi closure, and sasi closures are not administered by or coordinated with the Marine Park Authority unless a specific co-management agreement between a village and the MPA exists.
What happens if a resort operator unknowingly violates a sasi closure?
The consequences depend heavily on the relationship between the operator and the community at the time. At minimum, a sasi violation will require acknowledgment, an apology, and typically a customary payment or ceremony to repair the social breach. In a good-faith relationship, it may be resolved quietly. In a relationship already under strain — a land negotiation that the community views as unfair, a resort that has not delivered promised employment or benefit-sharing, or a foreign operator who has treated local partners dismissively — a sasi violation can become a focal point for broader community opposition to the entire operation. There is no regulatory authority to mediate this. The path back runs through the community, not a government office.