Idea Bank — Request for Climate Startups
Conservation Tourism
Eco-tourism ventures that fund habitat conservation through visitor fees in Bangladesh's biodiversity corridors.

The ask
Develop paid eco-tourism experiences anchored to protected or at-risk ecosystems — Sundarbans buffer zones, haor wetlands, Chittagong Hill Tracts forest — where a portion of every ticket directly funds conservation management.
Why now
Global nature-based tourism is recovering strongly post-pandemic with a documented premiumisation trend: travellers pay more for verified conservation impact. Biodiversity credits are beginning to trade, meaning operators can stack visitor revenue with future credit issuance. Bangladesh's new Tourism Policy 2023 opens community-based tourism concessions that were previously inaccessible.
Why Bangladesh
The Sundarbans is the world's largest mangrove forest and a UNESCO site — yet its buffer zone remains almost entirely unexploited for responsible tourism. The haor wetland system hosts globally significant migratory bird populations unknown outside ornithology circles. Both ecosystems face acute pressure from poaching, encroachment, and climate-driven salinity intrusion; conservation revenue could change the local economic incentive structure.
As a business
Revenue layers include guided experience fees, overnight lodge stays, corporate team retreats, and school educational programs. Conservation funds are ring-fenced (10–20% of revenue), creating third-party verified impact metrics that underpin premium pricing. Longer term, the operator accumulates biodiversity baseline data that converts to carbon and biodiversity credits sold to corporates.
Economics
Move the sliders to model your own conservation tourism venture. Defaults are order-of-magnitude estimates — pressure-testing them is part of what a founder pitches us.
Model a conservation tourism lodge
Does not break even within 5 years at these inputs — adjust the sliders. Hover or tap the chart for any month.
Illustrative model — defaults are order-of-magnitude estimates from public data, not a forecast. Pressure-test every number before you build.
What ZEPH would back
A founder with both hospitality operating experience and genuine conservation credentials — not a hotel developer greenwashing an existing resort. We want a model where the conservation impact is independently auditable and the lodge is profitable without the credits, treating credits as upside.
Impact
Conservation revenue directly changes the local economic incentive to poach or encroach: at 120 visitors per month and 15% conservation set-aside, the Sundarbans buffer-zone operation funds ৳2.16 lakh per month in active conservation management — roughly the annual income of four ranger families. Measured biodiversity baselines accumulated by the operator are increasingly convertible to biodiversity credits under emerging TNFD-aligned corporate commitments, providing a second funding stream. Mangrove ecosystems sequester carbon at 3–5× the rate of terrestrial forests (blue carbon); a conservation tourism operator managing buffer-zone mangroves can generate verified carbon credits under the Verra VM0033 methodology. Tourism spending in coastal communities diversifies income away from fisheries, reducing extractive pressure on the ecosystem.
Also being built elsewhere
Companies proving the model in other markets.
Eco-lodge on an 18,000 ha national park concession in Southeast Asia; proves the model of stacking visitor revenue with conservation outcomes in a tropical forested ecosystem.
Community-owned conservation lodge that generated $3 M for local communities since opening; proves long-run financial sustainability of conservation-linked tourism.
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