Vacation in nature - for most a vacation in nature is an emergency therapy rather than a vacation
Billions never have vacation - most people in "3rd world countries" - but many million need annual vacation for one reason only - their lifestyle is totally out of tune with nature and the longer you work in a city, the closer you get to a medical disaster. Instead of spending most of the year in artificial and life-/health endangering environment and a few weeks in nature - you should reverse and stay all year in nature and visit cities only if really needed for hours or days if no other options can fulfill your needs.
All the true needs are completely fulfilled and satisfied by nature with its infinite resources. All you need is to open your eyes and heart to see that all you really need is presented by nature - for free - made by God.