OH Flora Fauna... 
National parks, protected areas etc on the air.

I have been to some OHFF areas that are near me and also some that are in north Finland. 
There is something fun with just going to the wilderness and seeing the outdoor. 
Fun to try different setups. For the activation to be confirmed you need to be inside the area, maybe a printscreen of your mobile with a map showing where you are, making atleast 44 contacts... 
Depending on band conditions usually takes from 1hour to 1½hours.. Sometimes there is a nice pileup and sometimes you just call and call. 
The places where I have been are mostly accessable by car, maybe a short walk in some cases.