A spring tide weekend in Saint-Malo: the full plan

Over a spring tide weekend, the bay of Saint-Malo runs through two high waters and two low waters every twenty-four hours, with twelve metres between them. Forty-eight hours on site is therefore enough to see everything: the sea wall under the waves, the walk to Grand Bé, a foraging session and the ramparts at sunset. What remains is picking the right dates and building the days around the tide table — not the other way round.

Which weekend in 2026

The calendar below lists every episode. Two weekends stand out: 11–13 September (coefficient 102, Friday to Sunday) and 20–22 March (the tail of the spring equinox episode, coefficient 104). A coefficient of 95 already does the job nicely if those dates are taken.

Building the days

Two hours before high water, take up position: the Sillon wall from your window, or the ramparts. The flood rings the Fort National, climbs the beach, comes looking for the dyke. If swell joins in, check our “will the sea leap the wall?” index — and watch the spray from a distance, behind shelter.

Around low water, head out on foot: Grand Bé, foraging towards Rochebonne, or simply the beach grown immense. Count on two useful hours and keep a margin for the way back.

In between: Intra-Muros, a seafood platter, a thalasso in Paramé. The slack hours fall conveniently.

Where to put your bags

For a weekend, the main criterion is wasting no time on travel. Sea-facing on the Sillon, the high waters can be watched from the room — the dawn one included. Intra-Muros gives you the evenings inside the walls. The Grand Hôtel des Thermes adds a heated seawater pool between tides. Either way, book the room early: these weekends are among the most requested dates of the year.