Ashton Lagoon
A mangrove lagoon on Union Island restored after an abandoned marina project wrecked it.
Updated 3 September 2026
In the 1990s a marina development at Ashton on Union Island dredged channels and built causeways across the lagoon and then collapsed, leaving the water circulation cut and the mangroves and seagrass dying, in what was described as the largest single piece of environmental damage in the eastern Caribbean. A restoration project from 2016 reopened the channels and rebuilt the flow, and the mangroves, birds and fish have come back. The restoration was run by a local environmental organisation with international funding, and it is held up across the region as the clearest case of a wrecked coastal system being brought back.
The landscape
- The restored channels - the cuts reopened to bring the water circulation back.
- The mangroves - the forest recovering since the restoration began.
- The boardwalk - the walking route out into the lagoon.
- The failed marina - the abandoned causeways and pilings still visible.
When to go
December to May is the dry season. Birds are most active early and late. Hurricane Beryl in 2024 damaged the structures.
Before you go
The 2024 hurricane damaged the boardwalk and trails and recovery is ongoing. Mosquitoes are heavy at dawn and dusk. The failed marina remains are ugly and still visible.
Nearby
Chatham Bay is northwest, and Clifton is east.
What to pack for Ashton Lagoon
Chosen from what this place is for. Tap a kit for the full checklist.
- Broken-in walking shoes or boots - Grip and ankle support matter more than looks; never hike in brand-new boots. Find on Amazon
- Reef-safe sunscreen - High SPF that will not bleach the coral you are swimming over. Find on Amazon
- Layers + a waterproof shell - Mountain weather turns fast; a packable rain jacket saves the day. Find on Amazon
- Quick-dry towel - A microfibre towel packs small and dries in minutes. Find on Amazon
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Opening times, ticket prices and seasonal closures change - check the official source before you go: official site.
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