A quick survey of British diving facilities listed shows a state of affairs that Sport England think is 'not a problem'.
In a 30 year period we have:
Lost 74% of all diving facilities in England.
5 Counties had no change (1 had none to start with!)
8 counties had only lost between 50 and 66% of facilities (lucky them!)
11 counties have lost over 66% of their facilities
9 Counties now have no diving facility at all.
When you consider that there is no public access at all in places like Birmingham, Liverpool, Manchester, Sheffield or indeed most of London, this is really improving things!
If a 74% loss shows that the sport is in a healthy state, I hate to think what the figures would be for a sport in decline!