The Jacksonville Arboretum & Gardens (JAG) is a 501(c)(3) non-profit organization and park in Jacksonville, Florida, similar to Tree Hill Nature Center, and organized for the purpose of developing a unique natural attraction on a city-owned, 126.82-acre (51.32 ha) site. The arboretum officially opened on November 15, 2008, and the Sierra Club of Northeast Florida stated, "Development of this park is truly a community project of a size and scope never before undertaken by a volunteer organization."