Two humpback whales swimming together off the coast of Zanzibar

Tanzania

Zanzibar Archipelago

Restoring the ocean through community-led enterprise.

2,461 square kilometres of reef, mangrove and seagrass. Over 25,000 women depend on it for a living. And a model already raising their income by 900% while it restores the water underneath them.

Who you are supporting

Abundant Village is a US-registered nonprofit working alongside communities in Botswana, South Africa, Tanzania and Zimbabwe. We fund and co-design conservation that the people living closest to the land actually lead. This page is about the Zanzibar Archipelago, off Tanzania’s east coast, and the Marine ReGen Programme delivered there with our partner Mwani Zanzibar.

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501(c)(3) nonprofit · Tax ID 93-1914783

One of East Africa’s richest seascapes

The Zanzibar Archipelago sits in the Western Indian Ocean off Tanzania’s coast, spanning 2,461 square kilometres of coral reef, seagrass bed and mangrove forest. It is one of East Africa’s most biologically and culturally rich marine regions, sustaining biodiversity, fisheries, tourism and community life across a single connected seascape.

Mangrove corridors link Jozani-Chwaka Bay National Park to Menai Bay Conservation Area, the programme’s core protected area, supporting species found nowhere else, including the endangered Zanzibar Red Colobus. What happens in the water and along the shoreline between them is what keeps that link alive.

Unguja, Zanzibar Island Menai Bay Conservation Area

A seascape under stress

Bleached staghorn coral in Menai Bay, Zanzibar

Live coral cover has fallen below 25% in parts of Menai Bay, with reefs shifting toward algal dominance. The pressure comes from overexploitation, habitat loss and the growing impact of climate change on a seascape that has sustained these communities for generations.

More than 25,000 women in Zanzibar depend directly on intertidal zones for seaweed farming and subsistence. When the reef and seagrass they work in decline, so does the income of every household behind them.

A reef cannot be fenced off from the people who depend on it. The only restoration that lasts is restoration that pays.

The Marine ReGen Programme

Delivered with our partner Mwani Zanzibar, ReGen treats coral reefs, mangroves and intertidal zones as one interconnected system: business can build health into the ecosystems it depends on. By sourcing marine botanicals sustainably and channelling revenue into a community-managed ReGen Fund, the programme is built to reach financial sustainability by Year 5.

The programme runs across five connected focus areas, delivered in Unguja and Pemba Island communities, with core conservation in Menai Bay Conservation Area and processing at Paje on Unguja’s east coast.

A red-knobbed starfish in the shallows of a community-managed marine area in Zanzibar

Focus area 1

Locally managed marine areas

Co-management is expanding across 17 Shehia Fisheries Committees' community-governed zones and no-take areas, putting the decisions that shape the reef in the hands of the communities who fish it.

A soft coral reef structure off the coast of Zanzibar

Focus area 2

Coral reef restoration

Reef health surveys, coral nurseries, transplantation and artificial reef structures run alongside community monitoring training, rebuilding reef structure one transplanted colony at a time.

A fisherman casting a net into the shallows along Zanzibar's coastline at dusk

Focus area 3

Mangrove restoration

Mangrove nurseries, replanting and forest protection stabilise shorelines, serve as fish nurseries, and act as a blue carbon sink drawing carbon out of the atmosphere.

A green sea turtle swimming near the surface over a Zanzibar seagrass bed

Focus area 4

Seagrass and livelihoods

Technical training is turning women seaweed farmers into marine ingredient artisans over a five-year programme, so conservation becomes a trade with real income behind it.

A pod of bottlenose dolphins swimming through Zanzibar's protected waters

Focus area 5

Governance and capacity

Participatory resource mapping, marine spatial planning and transparent community benefit-sharing put the programme's decisions, and its proceeds, in view of the communities they affect.

Delivery and investment

2026 programme investment

The programme runs on a five-year implementation horizon, with philanthropic support highest in Year 1 and tapering as efficiency and partner investment grow.

USD 1,090,000

The 2026 programme budget, channelled into a community-managed ReGen Fund overseen by a steering committee. USD 180,000 in cost efficiencies have already been achieved by sharing staff and resources across Abundant Village’s existing partner programmes.

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Women as co-creators and leaders

“Mwani Zanzibar was founded on the belief that women should be co-creators and leaders, not beneficiaries.”

Mwani Zanzibar

The model has driven a 900% increase in income for women seaweed farmers. Many are now their household’s primary breadwinner, with effects that reach their children’s school attendance and university enrollment.

More than 65% of managerial roles are held by women, against a maintained 60% minimum target. Every woman in the programme completes a five-year training curriculum spanning chemistry, ecology, financial literacy and production management. The retention rate is above 80%, and two of the programme’s most senior farmers have already progressed into management.

Women seaweed farmers at work in the shallows of Zanzibar

The Marine ReGen Programme in numbers

100%
Women-led. Every seaweed farmer in the programme is a woman, and women lead it.
400 ha
Mangroves under management, with 25 ha actively restored over five years.
75 ha
Coral reef protected, with 1.5 ha actively restored.
25 ha
Seagrass protected through community stewardship.
130+
Jobs created for women and youth, including 30 processing roles and 100+ supply-chain roles.
1,250+
Members trained, 12% of Uzi Island's population.
100,000+
Mangrove seedlings planted to restore blue carbon ecosystems.
Year 5
Target for financial sustainability, as the ReGen Fund tapers philanthropic support while partner investment grows.

Who we work with

Delivered with Mwani Zanzibar, who lead the grassroots work, alongside Mwambao Coastal Community Network on restoration and the Wildlife Conservation Society on scientific assessment. The programme is supported by Blue Ventures, Zanzibar’s Department of Forestry and Non-Renewable Natural Resources, the Ministry of Blue Economy and Fisheries, and Nelson Mandela University as research partner.

Zanzibar in pictures

Community, coral and marine life from the Marine ReGen Programme.

  • A fisherman standing beside his outrigger boat on the tidal flats of Zanzibar

    A fisherman pauses beside his boat on the tidal flats, the same waters the Marine ReGen Programme is working to restore.

  • A starfish resting in the shallow, clear waters off Zanzibar

    A red-knobbed starfish in the shallows of a community-managed marine area.

  • Soft coral colony on the reef off Zanzibar's coast

    Soft coral colonises the reef structure off Zanzibar's coast.

  • Coral colonies covering a reef off Zanzibar's coast

    A healthy coral reef, the kind of structure the programme's nurseries and transplantation work aim to rebuild.

  • A green sea turtle rising toward the surface in Zanzibar's waters

    A green sea turtle grazes the seagrass beds the programme protects through community stewardship.

  • A green sea turtle surfacing off Zanzibar's coast

    A green sea turtle surfaces off Zanzibar's coast.

  • A fisherman silhouetted against the sunset on Zanzibar's coastline

    A fisherman casts his net at dusk: mangrove-lined shorelines like this are exactly what the programme's nurseries and replanting work protect.

  • A pod of dolphins swimming together off Zanzibar

    A pod of bottlenose dolphins in Zanzibar's waters, protected by the same marine spatial planning and benefit-sharing that governs the reef.

  • Bleached coral branches in Menai Bay

    Bleached staghorn coral in Menai Bay. Live coral cover has fallen below 25% in parts of the bay.

  • A pair of humpback whales surfacing off Zanzibar's coast

    Humpback whales pass through Zanzibar's waters on their seasonal migration.

Stories from Zanzibar

A few times a year we send word from the field: what changed, who made it happen, and what it took.

Join our community

We will never share your address, and you can stop at any time.

A school of fish swimming beneath the ocean surface

Stand behind the women restoring this reef

Your gift funds the seaweed-farmer training, the coral nurseries, the mangrove planting and the community patrols that keep Zanzibar's reef recovering.

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Abundant Village is a US-registered 501(c)(3) nonprofit. Tax ID 93-1914783. Donations are tax-deductible as allowed by law.