Earthfaire in Summerlin.

The master-planned community on the western edge of the valley will hold its annual Earth Day celebration on Saturday, April 21, from 10 AM to 4 PM. It's a free outdoor event that features musical entertainment, lots of activities for children and of course environmental exhibits by more than 50 local and regional organizations. It has become so popular that is has doubled in size from its first event a few years ago, reminds us the marketing director for The Howard Hughes Corp., developer of Summerlin.

The earth-friendly exhibitors will offer information and tips on efficient recycling, energy savings around the house and interactive environmental education. Yes, the usual, but useful. Among the marquee names scheduled to be around are Friends of Red Rock Canyon, U.S. Green Building Council, The Sierra Club and Southern Nevada Water Authority.

What's in it for the kids? A lot. To begin with, there's a trick dog show, whatever that is. Then there are gardeners from UNLV showing them how to plant flowers in the desert, someone else will talk about how to create art from recycled materials, and so on. Plenty of stuff to keep them busy. Should be a fun day for everyone. And educational.