PHILADELPHIA (CBS) – Headhouse Square is all set to “go green” this weekend.

The 9th annual Greenfest Philly is returning to the district, and organizers say they’re expecting at least 10,000 people to attend the eco-friendly festivities.

In addition to a beer garden, a 12-foot rock wall, edible bugs (“crickets on crackers,” anyone?), demos, family-friendly fun and more than 100 vendors, festival-goers can also take a spin in the new BMW i3, an electric car from the German automaker that won World Green Car of the Year for 2014.

And if you’re looking to get read of some tired clothing and accessories, you’ll be able to trade them at the festival’s Philly Swap.

Greenfest is hosted by the Clean Air Council, a non-profit environmental organization dedicated to protecting everyone’s right to breathe clean air. The festival runs from 10 a.m. to 4 p.m. on Saturday.

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