There are many hobbyist pilots who fly their aircraft just for pleasure.
Pilots up and down the country have small aeroplanes that they own themselves or own as part of a syndicate (where a group of people own shares in an aircraft). Pilots fly to other airfields or into farm strips for days out and even abroad. Some pilots choose to self-hire aircraft from flying clubs.
Where does it happen?
There are hundreds of aerodromes and private runways in the UK which facilitate leisure aviation.
How can you get involved?
Working at an aerodrome in capacities such as an operation assistant or supervisor, or airfield manager. You could even gain a Radio Operators Licence (ROCC) and volunteer at your local airfield as a way to gain entry.