Lakes

The Aiguebelette-le-Lac beach at Le Port: paid 13 June – 30 August 2026, pedalos, canoes and paddleboards for hire, wheelchair accessible without assistance.

Lac du Bourget: 18 km of water, lifeguarded beaches rated Excellente, cruises to Hautecombe and the Canal de Savières, the V63 greenway. Official figures with sourced contradictions.

Plage de Mémard, Aix-les-Bains: supervised swimming 27 June to 30 August 2026. Free. Water rated Excellent in 2025.

Plage du Rowing, Aix-les-Bains: supervised swimming 27 June to 30 August 2026. Free. Water rated Excellent in 2025.

Aix-les-Bains' municipal beach beside Aqualac: free, supervised from 30 May to 30 August 2026, 10:00–19:00, wheelchair accessible without assistance.

Lac de Roselend (Beaufort, Savoie), 1 557 m: Swimming forbidden. Official sources, discrepancies flagged.

Plage de la Pointe de l'Ardre, Brison-Saint-Innocent: supervised swimming 27 June to 30 August 2026. Free. Water rated Excellent in 2025.

Plage de Châtillon, Chindrieux: supervised swimming 27 June to 30 August 2026. Free. Water rated Excellent in 2025.

Plage de Conjux: supervised swimming 27 June to 30 August 2026. Free. Water rated Excellent in 2025.

Lac Saint-Clair (Détrier, Savoie): Not a declared bathing site, unsupervised. Official sources, discrepancies flagged.

The Grésy-sur-Isère lake: free access, Pavillon Bleu laureate, supervised summer swimming 12:00–18:00. Official sources, 2026 dates.

The Lac de La Thuile, a small alpine lake at 874 m in the Bauges: easy 45-minute loop, fishing 1 May to 15 November, Sensitive Natural Area. Swimming: contradictory sources, quoted as they stand.

Le Bourget-du-Lac's municipal beach: paid in season (€2.30–3.20), supervised 13 June – 30 August 2026, fully wheelchair accessible. Official sources.

Lac de Tuéda (Les Allues, Savoie): Not a declared bathing site, unsupervised. Official sources, discrepancies flagged.

The Lac d'Aiguebelette: one of France's warmest lakes (up to 28 °C), no petrol engines, an 844 ha regional nature reserve, world-class rowing and six beaches rated Excellente.

Lac de la Plagne (Peisey-Nancroix, Savoie), 2 144 m: Not a declared bathing site, unsupervised. Official sources, discrepancies flagged.

The Lac Saint-André below the Granier: free access, year-round lake loop, unsupervised tolerated swimming, fishing 7 March – 6 December 2026.

The Lac des Hurtières (lower Maurienne, 320 m): free lifeguarded summer swimming, 25 °C water rated Excellente, a Natura 2000 plain with a wildlife hide, a guinguette from mid-May to late August.

Le Sougey beach on the Lac d'Aiguebelette: paid 13 June – 30 August 2026 (€2.50 weekdays, €4 weekends), free parking, no dogs. Official sources only.

Two glacial lakes at the foot of the Dent du Chat: marshes protected since 1990, 'Famille'-labelled fishing on both lakes, viewpoint loops. Free access outside the summer beach.

Plage du lac de Saint-Jean-de-Chevelu: supervised swimming 27 June to 27 August 2026. Paid entry from €2. Water rated Good in 2025.

The Lac de Carouge at Saint-Pierre-d'Albigny: free beach, supervised swimming in July-August (13:00–19:00), paid summer parking. Official sources.

The Lac de Sainte-Hélène (Cœur de Savoie): swimming forbidden, reciprocal fishing (no-kill carp), wheelchair-accessible lake loop, herons and bee-eaters in the wetland. Free access all year.

The natural lake of Tignes, at 2100 m in the resort's heart: swimming banned by permanent decree, Acroland and the water-sports base, trout fishing, floating concerts — and winter on the frozen lake.

Plage du Lido, Tresserve: supervised swimming 27 June to 30 August 2026. Free. Water rated Excellent in 2025.

The Lac du Mont-Cenis at Val-Cenis: 320 million m³ behind France's biggest rockfill dam, swimming forbidden, 'Europe's highest' kayak-pedalo base, 5-hour walk round. Road open late May to early November.

Plage des Mottets, Viviers-du-Lac: supervised swimming 27 June to 30 August 2026. Paid entry from €1.70. Water rated Excellent in 2025.