Park Events

The Department of Regional Parks offers a wide range of seasonal, one-time, annual or sponsored events. From Calico to Mojave Narrows to Yucaipa, our parks system has something of interest for everyone to experience, including our four-legged friends.

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Venues: Cucamonga-Guasti

A man sifts banana peels into a composting box with a bag of compost and fruit peels next to a composting can with lid.

Build Your Own Compost at Guasti

Cucamonga-Guasti 800 N. Archibald Avenue, Ontario

Learn how to recycle organic resources, such as yard trimmings, as well as fruit and vegetable waste into compost for gardens. Join us at Cucamonga-Guasti Regional Park on Saturday, March 1, from 1 pm. to 3 p.m. for a hands-on education activity. All supplies will be provided, while they last....