Edison Viejo is managed by Limestone Canyon & Whiting Ranch Wilderness Park. The park connects with both Limestone Canyon and Whiting Ranch. Edison Viejo is great for hiking and mountain biking, with extreme uphill and downhill grades.

There are several entrances to Edison Viejo. One of the main entrances is on the corner of El Toro and Marguerite. From the Interstate 5 freeway, exit El Toro and head toward Portola Parkway, the entrance will be on the left hand side past Portola, just before you reach Marguerite.