Explore Forest Park’s magnificent native trees on a hike up the lush Balch Creek Canyon. Discover what trees need to grow and what they are made of, become a tree as it matures from seed to snag, and hug the tallest city tree in the country! Ages 6-9. Meet at Lower Macleay Park. Limited to 15 participants. Click here to reserve a place for your young forest explorers today! Advance reservations are required by 12 noon on the day before each hike.