Mabu, an African elephant, plays in the mud in the Reid Park Zoo's Expedition Tanzania exhibit.

Ron Medvescek, Arizona Daily Star

The Reid Park Zoo, 1100 S. Randolph Way, is hosting "Party for the Planet," from 9 a.m. to noon tomorrow.

Zoo staff and volunteers will host green crafts, games and exhibits to teach you what you can do to protect the animals and the environment.

If you ride your bike and show your helmet at the gate, you get free admission.