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A 12th-century castle whose keep dominates the town; it houses a museum and offers views over the island and marshes.
A former Benedictine abbey church, heir to the monastery founded by Saint Philibert in 674, with an 11th-century crypt.
A 4.15 km tidal causeway, the only land link until 1971, passable around low tide.
A forest of holm oaks and mimosas lined with seaside villas, and an 1889 wooden pier running out to sea from the Plage des Dames.
A former salt marsh turned national nature reserve, a refuge for waterbirds that can be watched from the dykes.
Since 1987 runners have raced the rising tide on the Gois each June; the 38th edition took place on 20 June 2026.
In May: a hand harvest, a bike ride and an evening of fried Bonnottes and grilled sardines, run by the farming cooperative.
In summer around 130 salt farmers rake coarse salt and fleur de sel by hand, and several offer free tours.
A rare early potato grown in sand enriched with seaweed and harvested in spring, best eaten simply with salted butter.
Raked by hand in the island’s salt pans and sold directly by salt farmers, along with samphire.
Farmed in the bay and sold by the island’s oyster farmers, often tasted in the huts around the port.