Earth Day coincides with the second Aloha Aina Conservation Fest at the Honolulu Zoo April 22 from 10 a.m. to 2 p.m. Environmental groups will be on hand to educate those in attendance about their efforts in the islands and beyond. There will also be informative talks with zoo keepers, keiki activities and a birthday event for Galapagos Tortoises at 1:30 p.m.!