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Costeau Park in Laguna Hills: Climb into a Kids Only Treehouse

Costeau Park in Laguna Hills: Climb into a Kids Only Treehouse

Costeau Park in Laguna Hills underwent a big renovation in April/May 2011 which removed all the bark play surface and completely replaced it with green recycled rubber. 

I was ready to be under-impressed because I liked the old wooden equipment. In fact, I overheard some teenagers say “We played at that old park, like, our whole lives.”

Despite my doubts, I have to say, I think the new version really is an improvement!

Directions to Costeau Park in Laguna Hills: At the corner of Alicia Parkway and Costeau, very near I-5 and AAA of Southern California office.  Exit I-5 at Alicia and turn towards Laguna Hills (away from Mission Viejo).  Pass Hon and take your next left on Costeau. You’ll see the playground on your right. Park Address: 25000 Costeau Park, Laguna Hills. MAP to Cousteau Park in Laguna Hills


  • I love the “Kids Only” treehouse theme.  Have your kids look for wildlife hiding in the tree.
  • The climbing equipment and slides kept my 5 year old entertained.  We even played a simplified hide-and-seek.
  • Those with toddlers will appreciate that this park is almost sand-free. There’s a separate sandbox at the little kid area.
  • 2 baby swings, 2 bench swings on separate sets.
  • Two spinners. I’ve seen these before, but I like the “bowl” version at this park because it’s close to the ground so kids can stop themselves.
  • Springy mini teeter-totter for extra bounce.
  • Lots of interpretive panels with numbers, counters, and planets.
  • Basketball courts
  • Large grassy area and hills for rolling down. Bring a ball or a frisbee.

Be Aware:

  • Loud roar from traffic on Alicia Parkway, especially during high traffic times
  • The baby swings are near the big kid equipment and the big kid swings are BETWEEN the little kid/big kid equipment. So watch the little ones when they travel back and forth between the structures while big kids are swinging.
  • In rare instances, you might compete with school children or day care programs for use of the park.
  • It’s near a street corner. However, because it’s slightly sunken in kids rarely run for the road.


  • Plenty of close on-street parking
  • Recycled rubber play surface
  • NO restrooms
  • Shade from trees surrounding the play area
  • Hopscotch near basketball court
  • Easy to supervise children
  • One picnic table right near each play area, more tables with grill near the basketball court
  • Wire mesh benches with backs
  • Softball field, basketball court, hopscotch
  • Restaurants nearby:
    • Starbucks (coming soon)
    • Plant Power (coming soon)
    • Terra Mia (pizza and Italian)
    • Khao Hom Thai
  • Official City of Laguna Hills website for Costeau Park

Parks Nearby Costeau Park

Don’t Forget the Giant Ground Sloth!

The plaque under this giant ground sloth statue is inscribed as follows: “This prehistoric giant ground sloth represents the Ice Age animals that flourished here 40,000 years ago. In 1965, sloth bones and teeth were recovered from this site with the fossils of bison, horses, camels, mammoths, dire wolves, and sabre-toothed cats. These animals lived by a perennial stream, now Alicia Parkway, in grasslands similar to African savannas. Costeau Park was established to preserve the thousands of fossils that remain buried beneath the surface. Historical Monument, Dedicated July 3, 1999.”

Originally published October 2008.


Tuesday 12th of March 2013

I added the sloth back in to the post. I wrote about it before the renovation, but didn't realize it was still there.

Thanks for the reminder, Melanie!


Wednesday 29th of August 2012

We went to this park today on your recommendation. It was super fun! The coolest park though was the big sloth statue in the corner of the park. The plaque says that the park was built to preserve the fossils underneath it! If you ever make it back to this gem, it would be great for you to include that information in your post.


Friday 9th of September 2011

Yes, indeed..this park is beautifully renovated, just came back after playing there for 4 hours!!!


Tuesday 31st of May 2011

It looks like lots of fun. I've been dying to see the new 'woodland creatures' since I saw them unloading the new equipment a month ago.

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