Wood Buffalo National Park
Wood Buffalo National Park is located in the northern prairie region of Canada. Fort Smith is the nearest town. It has been designated a UNESCO World Heritage Site due to its large population of bison (largest in North America) and the largest inland delta.
The climate is very mixed and can go from -50 in the winter to +30 (celsius) in the summer.But the average highs per season are about like this Winter:-20 Spring:-1 Summer:+17 Fall:+8
To get in you will have to enter from the nearest town that is Ft.Smith.But Ft.Smith itself is very isolated, So you can drive from Hay river to Ft.smith which taked about 3 and a half hours on a paved/gravel/dirt road just depends where you are on it(all though most is gravel).You can fly to ft.Smith from http://flyeia.com/ (Edmonton) on Northwestern air which has 5 flights a week.
Bug spray, lots of blackflies and huge mosquitos. You should also make sure your vehicle has a full tank of gas since you will often be travelling vast distances.