Granite island located in the Bay of Mont-Saint-Michel about 3 km from the Mont-Saint-Michel and 3 km from Broom, surrounded two times a day by the tide. The large tidal range of the Bay of Mont-Saint-Michel, allows access to the rock walk at low tide.
Its limited by tides and its diverse ecosystem allows seabirds live and nest above the spring, and for peace of mind access Tombelaine bird sanctuary is from March 15 to July 15, prohibited from accessing it.
The island Tombelaine originally many legends, was the location of a chapel and a priory, then a village and finally a castle, it was occupied by English. The destruction of the latter and houses surrounding it, was a bargain and served as a stone quarry already cut, so there are only a few ruins but it emanates a strange atmosphere, a few souls who lived in place may be, we felt at his approach.