miniature railway twice: once when I was 5, then again aged 52.
Similar here - my primary school in Norf Lunnon (can't remember the name - 1/4 of the way up Cat Hill in New Barnet) took us on a week-long trip to St. Mary's Bay when I was a nipper.
Went back there a couple of years ago when I was 50. The accomodation was slightly better than before - ex-WW2 temporary huts converted into kiddie-barracks were not great.
But it was the 70's and we expected nothing better.