The term open-air hotel only applies to camping/caravaning sites offering a whole range of services in addition to accommodation capacity. This is true of the Vidy camping site featuring a reception which is open 24/7, a restaurant with outdoor seating, a shop, games and an entertainment programme including theme evenings which locals, by the way, are also welcome to attend!
Open all year round, the Vidy camping site (4 stars) has 400 pitches in the high season and 65 residential all-year pitches (caravans and mobile homes).
The Vidy camping site and the Pra-Collet site in Vers-chez-les-Blanc contribute to the diversification of complementary accommodation available in Lausanne alongside options such as bed and breakfasts, "backpacker" hostels, collective accommodation in schools etc.