Planet Ark is celebrating 20 years of National Tree Day and Schools Tree Day, Australia's largest community tree planting and nature care event. Tree Day is an opportunity to do something positive for your local environment and community and to reconnect with nature. National Tree Day started in 1996 and since then more than 3.8 million people have planted 22.3 million trees and plants and it's still growing. Schools Tree Day (Friday 29th July) or National Tree Day (Sunday 31th July). See the website for nearest location to you.