Sorry, indoor leisure I meant “fun things” not gyms. And yes theatres have been open, there will be a lot of west end shows, ballet and pantomimes that need to close now.
There are some very random things on the full list of “entertainment” .
Closed entertainment venues and visitor attractions:
indoor play centres and areas, including inflatable parks and soft play centres and areas (other than for people who have a disability)
trampolining parks (other than for elite athletes, people with a disability, supervised activities for children and for formal education or training purposes)
casinos
bingo halls
bowling alleys
indoor skating rinks (other than for elite athletes, professional dancers and choreographers, people with a disability, supervised activities for children and for formal education or training purposes)
amusement arcades and adult gaming centres
nightclubs and adult entertainment venues
laser quests and escape rooms
cinemas, theatres concert halls – other than drive-in events, broadcasting performances, training or rehearsal
circuses
snooker and pool halls (other than for elite athletes)
At the following outdoor entertainment venues, the indoor attractions must close:
zoos, safari parks, and aquariums
other animal attractions including farms
water parks and aqua parks
model villages
museums, galleries and sculpture parks
botanical or other gardens, biomes or greenhouses
theme parks, fairgrounds and funfairs
adventure playgrounds and parks, including ziplining
visitor attractions at film studios,
heritage sites such as castles, stately homes or heritage railways
landmarks including observation wheels and viewing platforms