Join Trees For Tomorrow in Eagle River for their many summer programs for people of all ages. On Wednesdays they offer Family Nature Programs from 10:30 to 11:30. Check in begins at 10:15. $4 per person or $10 per family (up to 4). Join naturalists in discovering the Northwoods through hands on activities and exploration. TREE ID – Learn to explore native tree species as you learn to create dichotomous key, then take the tree id course with your family.