From Montpellier train station

Take the Tram Line 1 to Odysseum. Stop at La Ronde, Place de France. No need for a timetable, the tram passes every 3 to 5 minutes. Time to reach La Ronde, Place de France is 16 to 18 minutes. Get out of the Tram, closeby you will find the buses stations.

Take the Bus 106 to Lattes - Carnon - La Grande-Motte - Le Grau-du-Roi - Aigues-Mortes
The stop is Rue St Louis or Ponant depending on the time you take the bus (see timetable).

You can download the bus map and timetable as well as the Tram map.

From the airport

The best solution is to take a Taxi to the Belambra club. The trip is of 15-20 minutes.