La Route des grands Lacs du Morvan

Cycling from lake to lake through the Nièvre and Morvan regions, with swimming (and camping) every 35km! 260 km and 3000m D+.
7 days and 7 stages at the water's edge in ultra-cool mode and cyclo-camping to give you time to enjoy the beaches. Also possible in sport mode over a weekend or a few days, or in ultra mode over a day.
Small, tarmac but rough roads, ideal for touring or gravel bikes. Very few cars.
It's uphill all the same... You'll need to adapt the stages to suit your level of ability.
Direct access by train: Nevers (2 hours from Paris, 2h40 from Lyon), Decize (1h50 from Dijon)