Great lake

Lac d’Annecy

GETAWAYS • Haute-Savoie

France has a short but pretty shoreline on Lake Geneva, but the true great lake of Gaul is the nine-mile-long, two-mile-wide Lac d’Annecy. The cleanest lake in Europe — it’s so pure you can officially drink its waters — has an area of 97 acres running north-south from the delightful town of Annecy in the country’s Haute-Savoie dép…