A healthy escapism. You are able to remove yourself from sources of stress: work, family, school, the list goes on. You can get away from things and work out solutions to difficulties you are experiencing. A quiet and scenic place is always good.
It's a form of not killing yourself with work.
No.. recreation is there to re-build mental and physical reserves.. in order to get through what you have to do...
Escapism is when you numb your mind, so you don't have to use any mental reserves... but in the end, it leaves you dissatisfied and frustrated.
Ask the legions of burnt out drug users.