Hilary Duff & Mike Comrie: Malibu Beach with Luca!

Hilary Duff holds onto her adorable 17-month-old son Luca while soaking up the sun on the beach on Monday (September 2) in Malibu, Calif.

The 25-year-old entertainer had some fun with Luca building a sand castle while her husband, Mike Comrie, played some football with friends.

PHOTOS: Check out the latest pics of Hilary Duff

That same day, Hilary showed off her legs in a pair of cut-off denim shorts while grabbing some lunch with Luca at a local restaurant.

20+ pictures inside of Hilary Duff and her family out and about in Malibu…