You can fly to Spain for under £60 return. Guaranteed sunshine temperature 20 to 35 degrees come back home feeling you have had a holiday and a cracking tan.
Or visit the one in Kent will cost about the same get a fake tan sorted guarantee rain during your stay. Go home thinking it would have been cheaper going abroad LOL!
Kent will do ok from the UK day trips probably a bit like Alton Towers. Someone from the EU would fly to Spain instead of the UK.