Fees and deposits are subject to change and might not include tax. However we had a fantastic week in the sun. Train took 4 and half hours to get to agde where we got prebooked taxi to campsite (about 25 euros). It has a large swimming pool, spray park, fully equipped camping pitches and modern sanitary facilities.
It is cheap, quick but not very frequent so you have to plan in advance. Sete is known as the venice of the languedoc and is very scenic.