You can go to Istanbul Karavan Village for a holiday getaway where you can stay away from the eyes in the Çekmeköy district of Istanbul.
For a clean nature camp in the middle of the city, you can visit Maşuk Camping Çekmeköy, which is located in Çeşmeköy.
You can have a unique holiday where you can find various opportunities at the Historical Tuzla Facilities, which have been in service since 1927.