top of page





The website ofPen-en-Toulpreserves since 1995 the largest marsh in the west of the Gulf of Morbihan. Place of fertile exchanges with marine waters, it is also a privileged stopover for migratory birds. This former arm of the sea was dammed in the middle of the 19th century, to develop salt marshes.

come discoverTHEMarsh of Pen en Toul by bike, with family or friends. An incomparable tranquility and a perfect place to observe the local fauna and flora.
Berder Island
Berder Passage

Berder's Island, more commonly known as Berder is a small island of 23 ha located in the department of Morbihan (Brittany), and depending on the municipality of Larmor Baden.
True island at high tide and peninsula at low tide, Berder is connected by une submersible roadway from 80 m to Larmor Baden.
The “Passage”, discovered at low tide, is at rising tide overwhelmed by a tidal current even more violent, accelerated by its narrowness and by the riprap made.
To visitthis beautiful placen mountain biking remains the solution but
Baleadenn recommends to take the paths of Ile a Pied because there are many roots there and many people walk the paths, especially in summer.
However, you can leave the bikes in front of the passage de Berder at the entrance to the island.
sept iles


Seven Islandsis a island Breton (a unique island despite its name) located in the Gulf of Morbihan and part of the municipality of baden. It belongs to an individual. You can walk around it while respecting the cultures. It is connected to the mainland by un raffle sand submerged at tide haute.




bottom of page