⚠️ Entry rules and local regulations change without notice. Before booking, check entry requirements and local rules — visas, access, nature reserves, visitor quotas — with the official authorities.
Facing Roscoff, the Île de Batz (3.5 km long) enjoys a surprisingly mild microclimate: palm trees in the Georges Delaselle garden, early-vegetable fields, white-sand beaches and a lively little harbour. Just a 15-minute crossing away, it is northern Finistère's easiest island escape — best savoured on foot or by bike, all year round.
An exotic garden fifteen minutes from Roscoff
The Île de Batz is a fifteen-minute boat ride from Roscoff — close enough that the lighthouse and the bell tower are visible from the quay — and yet it keeps its own pace: 3.2 km², around 450 inhabitants, market gardens and dry-stone walls, and almost no cars. Batz lives from vegetables and seaweed: the goémoniers still harvest kelp on the foreshore, and the island's early potatoes and cauliflowers go to market on the mainland.
The surprise is the Jardin Georges Delaselle at the eastern tip, an exotic garden planted from 1897 by a Parisian insurance agent who turned a dune into a collection of palms, agaves, proteas and Mediterranean and southern-hemisphere plants — possible because of the mild maritime climate and frost-free winters. It was abandoned, then rescued in the 1990s, and is now one of the finest gardens in Brittany.
The rest is a gentle circuit: the lighthouse of 1836 on the high point (198 steps), the ruined Romanesque chapel of Sainte-Anne, the beaches of the south coast, and a harbour where the tide empties and fills entirely twice a day.
April to October
The garden is open from April to October and is at its best from May to September. July and August bring day-trippers from Roscoff but never in overwhelming numbers; spring and early autumn are quieter and the light over the Bay of Morlaix is at its clearest. The island is walkable in any season — boats run all year.
A boat every half hour
Boats leave Roscoff's old harbour — or, at low tide, the long jetty — every half hour or so in season, year-round, and take about fifteen minutes. No reservation is needed; you buy a ticket on the quay. It is France, so no formality and the euro.
Hire a bike at the landing or walk: a full circuit of the island is about eight kilometres on flat paths. There is a handful of guesthouses, a small hotel, a campsite and a few restaurants, all concentrated around the harbour; staying a night is the way to have the island to yourself. Local seafood, and vegetables grown a few hundred metres from the table.
Essentials & your questions
| Main village | Le bourg (Porz Kernok) |
|---|---|
| Area | 3.2 km² |
| Language | French |
| Currency | Euro |
| Visa | EU ID card |
| Access | Boats from Roscoff (15 min, year-round, ~€11 return) |
Do I need a visa?
No formalities: the Île de Batz is a French commune in Finistère. An ID card is enough.
How do I get there?
By boat from Roscoff's old harbour: a 15-minute crossing, departures year-round with the tides (roughly every 30 minutes in season), ~€11 return. Bikes welcome aboard.
What is there to see?
The Georges Delaselle exotic garden with 2,500 species, the lighthouse and its 198 steps, the Grève Blanche beach, Sainte-Anne chapel and the 2-hour island bike loop.