I’ve been going out to Cogolin with work, town just up from St Tropez. Last year I had a spare day and hired a road bike (a carbon Giant – where could you do that in the UK?) from the bike shop in Cogolin and pedalled around the hills up to Collobries – fantastic ride. But, the off-road riding looked great. When I went in the shop, I think a ‘Cycle Evasion’ shop a fella’ from Manchester was working as the mechanic and suggested that there are locals who meet and go out from the shop, off-road, if I was ever there over a weeeknd. If your french is good – which mine isn’t, might be worth trying them.