You can stay overnight there. While we were in Sarti, several mobiles stayed there, including several nights. We found the sewer smell there sometimes very unpleasant.

camper place no longer exists. There is a large free parking lot with buses. No idea if it is still possible to spend the night here. We drove further.

We were here in early July, great place, free cs, friendly staff. Free umbrella and deck chairs, we recommend a drink. After 2 days we left, but we didn't like the place near them so we went back for another 2 days.