Myself and two friends are arriving in Marseille on 6 October for a couple of nights. We are arriving in a people carrier and plan to park up and sleep in it for 2 nights (no hotels available). Campsites I've found on the interweb appear to be too far outside the city centre. Does anyone have any advice on a reasonably safe, reasonably central spot to park up for the weekend? Can't find any designated campavan spots so we are presuming that heading for the beach may be the best bet - possibly a car park near some shower/wc facilities.