The National Park of Bialowieza is a place that really worth to visit. Is only place in all Europe where still bisons and there are some of the biggest and oldest trees (oaks ans so long)
Walking or riding bikes any way is great to enjoy just walking around this huge place.
In two days you can see the main thing, but more time will be great.
There are some hotels, one youth hostel and many people with guest rooms for rent.over 7 years ago