My 16 year old DS wants to go away with his mates (probably about 5 or 6 in total) after GCSEs finish - so late June, before the main school summer hols. Just camping or caravanning somewhere by the sea, nothing 'challenging' or sporty (they're not that type!) but not too remote as they don't have transport. Somewhere like Newquay in Cornwall would be ideal but I'm aware that a lot of campsites and the like don't welcome groups of teenagers. They're nice kids and not troublemakers, and wouldn't like anywhere with a reputation for trouble/drugs etc. We're based in the West Midlands so would have to be reasonably easy to get to by public transport. I don't fancy driving hundreds of miles to take them there (although would if absolutely necessary).
Any ideas?