of the Lac du Bourget watershed is occupied by the spa town of Aix, which borders on the shore. The lake is primarily fed to the south by the waters of the Leysse, and to the east, by those of the Tillet and the Sierroz, both from the Aix territory. Native fish can be admired in the aquarium of Aix. The shore, which is occupied by Aix and Tresserve, is highly urbanized and developed along the northeastern part with the road and the railway track. Many restaurants and nightclubs are located there (mostly on the southeastern side). A nautical complex was built on its shore, this includes a swimming pool and a beach which has an Art Deco-style main entrance dating from 1936. After which is a vast esplanade, allowing walkers to stroll and special events to settle temporarily on this site. It offers a panoramic view of the lake and the Dent du Chat, where birds such as mute swans, mallards, grey herons, black-headed gulls and common moorhens can be found.