I'm in the early stages of planning a trip in mid-June next year in which I would have one or two whole days in Montpellier, plus a couple of half-days - a morning and an afternoon - on either side of 4or 5 nights in Olargues. I don't drive and would be getting to and from Olargues by local bus. I have identified preferred accommodation in both Montpellier and Olargues but haven't made firm bookings yet.
Two places I'd like to get to from Montpellier are St Guilhem le Desert and the Abbaye de Valmange, and possibly also Maguelone. I can see the Montpellier Tourist Office offers a day-trip to St Guilhem, but that's only on Fridays. There is also a bus that runs from Montpellier to St Guilhem May-June Saturdays and Sundays only, with 7 hours there (too long?).
What about the Abbaye de Valmange? Any tourist office trips, or bus connections? Train to Sete, but that's 23 km away.