Turtle Rock Community Park houses the Turtle Rock Nature Center, as well as an outdoor playground and natural park area for picnics.
Irvine Regional Park is an OC Parks regional park with playgrounds, the OC Zoo, Irvine Park Railroad, a lake, stable, surrey carts, & ponies.
Heritage Park in Irvine sports a water feature and lots of nautical play on its playground. It’s also near the public library and small lake.
Northwood Community Park in Irvine is also known as Castle Park. I think of it as a fortress fit for knights and princesses.
The San Joaquin Wildlife Sanctuary in Irvine is home to Sea & Sage Audubon House. Walk wide dirt trails & see the wildlife in the ponds.