My sister & I used to go to Chaigley, we had great times there, we were picked up from outside Cannon St Clinic on a Monday and returned back on Friday of the following week. We had a medical a week before, you couldn't go if you had nits, if you had them they checked you again on morning of departure. Parents could visit on the Sunday, there was a bus from the Odeon on Broadway.In later years ( around 1985 ish) they built an outdoor!!
swimming pool, my kids went there too.
My mum and dad subscribed to the 'penny a week' fund which enabled us to go, but I had to pay for my two as this had stopped.