Oldgit
Registered user
Camped in Interlaken a few years ago, late June. Didn't book but site was already busy, got the feeling that we might struggle a couple of weeks later. I guess that sites that are near to or within walking distance of the town centres are going to be more popular/busy/ difficult to get in to.
Just my opinion but if in doubt get it booked.
Just my opinion but if in doubt get it booked.