Enjoy amazing activities and fun games featuring nature’s essential element: WATER! Suitable for ages 2+. All children must be accompanied by an adult. Guided Walking Tours of Dorothea Dix Park – Various dates. The free 2-hour, 3.5 mile tour will cover the history of the buildings, land, and legacy of Dorothea Dix, the current use of the area as the headquarters of the Department of Health and Human Services and the steps the City will take in planning a future park.