The EcoTarium opened the Tree Canopy Walkway in 1999; it was the first in the nation to open to the public. During its almost 20 years of operation, the nature of tree canopy and zip line experiences has changed drastically. After much consideration, we have decided to permanently close the Tree Canopy Walkway. If you are interested in enjoying other outdoor exhibits at the EcoTarium please check out our nature trails. Thank you for your continued support.