The actress' late father is mourned in California.

ET has learned that CAMERON DIAZ's late father, EMILIO, was remembered by the actress and more of his loved ones today at a service in Seal Beach, CA.

Mourners, including former flames JUSTIN TIMBERLAKE and JOHN MAYER, began arriving around noon, some wearing Hawaiian clothing and leis. Cameron was heard giving a speech to commemorate her dad. Shortly before they arrived, tropical flowers were unloaded from a white van and carried inside.

Emilio passed away last week, and Cameron released the following statement about her dad, "My mom, sister and I are deeply appreciative of the overwhelming outpouring of love and support during this difficult time for us and all of our family. My dad was loved by so many people and his humor and spirit will always live on in our hearts."

In lieu of flowers, the Diaz family tells ET that those wishing to honor Emilio's memory may make donations in his name on Surfrider.org or Reefcheck.org.