Eco-Friendly Hotels in Rennell — Your 2026 Guide to Sustainable Stays

Why Rennell for Sustainable Travel

Rennell's geology is its story. It is a raised coral atoll: a former lagoon floor and reef ring thrust above the sea, leaving a rim of fossilised coral around a central depression. That depression is Lake Tegano, a 15,000-hectare brackish lake that is the largest in the insular Pacific and the centrepiece of East Rennell, inscribed as a UNESCO World Heritage Site in 1998. The lake's raised islets, carved by erosion into mushroom-like outcrops, and its open water dotted with seabird islands make it one of the Pacific's great natural spectacles.

The human story is just as distinctive. Rennell and Bellona are the only islands in the Solomons populated entirely by Polynesians — descendants of voyagers who arrived from the east centuries ago — and their language, customs and communal land tenure survive intact. With roughly 1,500 residents spread across lakeside and coastal villages, the island's carbon footprint is close to zero, and community tourism is the main cash economy. Visitors who respect the kastom rules — ask before photographing, swim only where invited — are welcomed warmly.

Where to Stay in Rennell

Tigoa — The Island Capital

Tigoa, near the airstrip on the island's north coast, is Rennell's largest settlement and its gateway. A handful of guesthouses offer simple rooms, home-cooked food and local guides; this is where you arrange boats, vehicles and village visits. It is bare-bones accommodation by resort standards — which is precisely the point of staying somewhere this unspoilt.

Lake Tegano Shoreline

Community guesthouses on the lake's shore put the UNESCO site at your doorstep. Days revolve around paddling the lake in outrigger canoes, island-hopping to the seabird islets, and walking the limestone forest with bird guides. Nights are lit by kerosene and conversation — bring a book and a torch, and leave the schedule at home.

Coastal Villages

A scattering of villages on the island's southern coast offers beach stays and reef snorkelling with a strong community focus. These are the quietest options on the island, reached by boat from Tigoa, and the best base for the lagoons and reef channels of the south shore.

How IMPT Makes Your Solomon Islands Stay Carbon-Negative

Here's the maths. An average hotel night produces roughly 35 kg of CO₂ — from air conditioning, laundry, lighting, and food service. When you book any Rennell hotel through IMPT, we retire 1,000 kg of UN-verified carbon removal credits. That's 28 times what your stay produces. Not carbon-neutral — carbon-negative.

The cost to you? Zero. IMPT funds the removal from its booking commission. You pay the standard nightly rate — in fact, IMPT is the same price as Booking.com on the same room. The carbon credits are tokenised on Ethereum, retired against a named project, with a public retire code anyone can verify. No double-counting. No greenwashing. Just verified carbon removal, every night.

• €5 free credit when you sign up — applied to your first Solomon Islands booking
• 5% back on every stay — 3% funds carbon projects, 2% as travel credit
• 8M+ hotels worldwide, 195 countries — Rennell is just the start
• Free cancellation on most rates, typically up to 48 hours before check-in

Sustainable Things to Do in Rennell

Lake Tegano dominates everything. Paddle an outrigger across its open water to the raised islets, where endemic Rennell white-eyes and fantails flit through the ironwood forest, and swim in the brackish shallows where the lake's unique fish species live. Birdwatching on Rennell is world-class — several species occur nowhere else on earth, and the lake's islets are major seabird colonies.

On the coast, the reef flats off the southern villages offer snorkelling with turtles and reef fish, and village guides will show you the island's caves and the giant clams of the lagoons. Rennell is also one of the few places in the Solomons where you can still see traditional Polynesian navigation knowledge in use. And when you're done exploring, shop through IMPT's 25,000+ retail partners to earn cashback on every purchase that also offsets carbon, or send someone a trip credit gift to visit Rennell themselves.

Beyond Hotels — More Ways IMPT Works in Rennell

Corporate travel to the Solomon Islands? IMPT's B2B Corporate Travel platform gives teams exclusive rates, automatic ESG reporting across Scope 1, 2 and 3, and a single dashboard tracking every booking's carbon impact. Business plans start at $99/month; Enterprise at $250/month. For CSRD compliance needs, automated sustainability reporting is ready out of the box.

Planning to fly via Honiara? IMPT Flights adds carbon offset at checkout when it launches in H2 2026, with Platinum Goodness members getting an extra 2% discount. In the meantime, redeem carbon voucher gifts — from $40 for 3 months of credits — or explore verified climate projects directly.

Interested in running IMPT in the Solomon Islands? Country Ownership offers 50% revenue share on every transaction from Solomon Islands-registered users, with 8% APY staking yield. Book a call →