Tarrywile Park is a 722-acre historic building and land preserve, purchased by the City of Danbury in 1985. Tarrywile is managed for the City of Danbury by the Tarrywile Park Authority (TPA) to provide appropriate community activities, passive recreation, environmental education, wildlife management, watershed protection, scenic views, agriculture, and forestry, while maintaining a sustained balance of historic preservation.

As a passive recreation park, Tarrywile has more than twenty-one (21) miles of hiking trails, in addition to a portion of the Ives Trail and Greenway. Two picnic areas have been established, one in the orchard and one off the lower Mansion parking lot.  Annual activities in the park include Winterfest, Summerfest, National Trails Day, Haunted Hayride, cross country running meets for area high school students, numerous outdoor events such as cross country skiing clinics, backpacking and camping demos, monthly guided hikes, orienteering, and environmental education programs.  

The Children's Garden, located on the mansion grounds, was opened in the fall of 2000.  The Garden is based on Maurice Sendak's children's book, Where the Wild Things Are, and serves as an area for children's story-hour and environmental activities for educational and school groups.

In the Spring of 2004, the Community Angel Network through the leadership of Mrs. Phyllis Boughton beautified and built a meditation garden around the Tarrywile Gazebo.

Tarrywile Mansion functions as a community center for the City of Danbury. The 23 room shingle style Victorian is available for a variety of large or small family, cultural, school, service club, social, or business functions.