geocalia

Guide · Genêts

Découverte de la Baie du Mont-Saint-Michel

Guides of the Mont-Saint-Michel bay since 1994, based in Genêts: crossings on foot to the mount, circuits to Tombelaine and short walks at the foot of the walls.

Découverte de la Baie is a guiding company in Genêts, on the Norman shore of the bay, that has led groups across the sand since 1994. All its guides hold the prefecture's accreditation as a Mont-Saint-Michel bay guide, or are training under the responsibility of an accredited one: it is what is needed to cross the bay safely, because the tide comes in fast, there is quicksand and the rivers change course.

What they do

From late March to early November they organise the long crossings from the Bec d'Andaine or Saint-Léonard to the mount: return on foot, about 14 km and six hours (€23 adults, €15 ages 3 to 14), or there on foot and back by shuttle and bus (€33 and €25). All year they run circuits to the island of Tombelaine (€20 and €13) and short walks of about two hours at the foot of the mount: the walk round the mount, the sunset walk and the rising-tide walk with the tidal bore (€17 and €12), and one of an hour and a half on the quicksand (€15 and €11). Under-3s do not pay.

How it works

It is wise to book on its website, because groups are limited; with a reservation, the guide waits for you fifteen minutes before at the departure point. Without a reservation, you can turn up in the half hour beforehand and pay the guide if places remain. From April to October you walk barefoot and in shorts; from November to March, in boots or neoprene booties and warm clothes. Dogs may go on a lead, but not on outings with a shuttle or bus. The activities are not for pregnant women or people with heart, breathing or joint problems.

What they run

The Geocalia activities run by Découverte de la Baie du Mont-Saint-Michel, with the prices and terms they publish.

  • Guided Walk across the Bay, from Genêts to the Mount in Mont-Saint-Michel Great crossing, return on foot from the Bec d'Andaine or Saint-Léonard From €23 adult (€15 for ages 3 to 14) · 6 h · Late March to early November 14 km, about 45 minutes' stop at the mount Book Great crossing, there on foot and back by shuttle and bus From €33 adult (€25 for ages 3 to 14) · 6 h 30 · Late March to early November 7 km on foot and an hour and a half free at the mount Book Circuit to the island of Tombelaine From €20 adult (€13 for ages 3 to 14) · 3 h 30 · All year according to calendar 7 or 8 km from the Bec d'Andaine or from the mount Book
  • Guided Walk on the Sand at the Foot of the Mount in Mont-Saint-Michel Walk around Mont-Saint-Michel From €17 adult (€12 for ages 3 to 14) · 2 h · All year according to calendar 3 km; also in a sunset version Book Rising tide and tidal bore From €17 adult (€12 for ages 3 to 14) · 2 h · Days of big tides 3 km; a walk and, at the end, the wave that announces the rising sea Book Discovery of the quicksand From €15 adult (€11 for ages 3 to 14) · 1 h 30 · All year according to calendar 2 km; guide's demonstration and a safe trial Book

Independent companies: you book with them, on their terms. Prices are as they publish them and may change.

Practical details

Opening hours
  • Mon–Fri09:00–12:30 and 14:00–17:30
  • Sat and SunClosed

Office hours from November to March; from April to October, Monday to Friday from 9:00 to 18:00 and weekends from 10:00 to 17:30

Languages
French
Meeting point
Saint-Léonard (Découverte de la Baie flag), Route des Moires, 50530 Vains Saint-Léonard

Details checked on 12 November 2026.

Frequently asked questions

Do you need to book?

It is recommended; without a booking you can go to the departure point half an hour before, if places remain.

Do they cross in winter?

The long crossings run from late March to early November; in winter there are short walks and circuits to Tombelaine.

Can children go?

Yes, even young ones; under-3s do not pay and there are outings designed for families.

Independent company: you book with them, on their terms.

Opening hours and prices can change: check them before you go.

Is this your company? Write to us to correct or complete the details.

Itineraries

Features in these plans