Discovery Crossing to Tombelaine Islet

Discovery Crossings

to Tombelaine Islet

The Islet

of Tombelaine

Located at the confluence of the Sée, Sélune, and Couesnon estuaries, Tombelaine is a granite islet nearly 40 m high, with an area of 3.8 ha and approximately 3 km from Mont-Saint-Michel. Tombelaine Islet is located within the municipality of Genêts.

To discover the rich history and unique features of this mysterious twin rock of Mont Saint-Michel, embark on one of our tours to explore Tombelaine!

Tombelaine se reflète dans son miroir d'eau.

From Bec d'Andaine

to Tombelaine - 8 km

Starting from Bec d’Andaine, your guide will lead you to Tombelaine Islet. As you walk, you’ll discover aspects of the local flora and fauna. After crossing the Lerre, a small coastal river, you’ll approach this uniquely shaped rock, at the foot of which the guide will recount its history and legends.

Option “picnic getaway” depending on tide times: Enjoy a picnic break facing Mont Saint-Michel. Check the calendar.

Departure from Bec d'Andaine

Guided tour

Approx. 4-hour excursion

8 km to cover

Difficulty 2/3

Foot bath upon return

From Mont St-Michel

to Tombelaine - 7 km

Starting from Mont-Saint-Michel, your guide will lead you to Tombelaine Islet, an ornithological reserve regularly surrounded by the sea. After crossing the waterways, they will discuss the history of this legendary, isolated place, rich in faunal, human, military, and religious interest.

Depending on the departure time, remember to bring your picnic in your backpack!!!

Option “sunset”: at the end of the day, as the Mont regains its tranquility, the guide will take you towards Tombelaine Islet. On the way back, with the guide’s commentary, the “Wonder” offers you its luminous and magical vision as night falls. Check the calendar.

Departure from Mont Saint-Michel

Guided tour

Approx. 3.5-hour excursion

7 km to cover

Difficulty 2/3

Bring a bottle of water for foot washing