Two sites in Morzine, one actually on the PPS route, on the Montriond side of town on the lane leading up through the meadows beside the Dranse. Never stayed there, looks nice enough though. It’s here 46°11.898’N, 6°41.355’E.
In Essert Romand, a tiny village about 5 mins drive, 10 mins walk from Morzine’s fleshpots is Camping Les Mormottes.
http://www.campinglesmarmottes.com/en/index.html
46°11.718’N, 6°40.651’E
Or try in Les Gets 46°09.041’N, 6°38.550’E, La Grange au Frene. I know nothing about it at all!
http://www.morznet.com/more/morzine-accommodation-camping-caravans-la-grange-au-frene.htm?id_service=11321
To be honest though, I’d suggest that you book a chalet if there are 6 of you. Prices are not as high as you might think. And no camping kit to carry either, plus a roof over your head if it rains. Search online and then phone and talk to the letting agent/ owner. There are deals to be had for people staying more than one week. Remember to book a chalet with the correct number of bedrooms though, (most) consider the sofabed in the living room to be included in the bed count.
We’ve stayed here before and are doing so again this summer. Good people but note, not ABTA? bonded. But VERY reasonable prices!
http://www.mountainbikemorzine.co.uk/4.html