Megan Fox and Brian Austin Green were married in an intimate, sunset ceremony June 24 on the beach in Hawaii, with the actor's son, Kassius, 8, their only witness.
The actress, 24, walked down the sandy aisle to meet her groom outside the Four Seasons Resort Hualalai at Historic Ka'upulehu, and they were wed by a local kahuna, a Hawaiian priest. Kassius (whose mother is Green's ex, Vanessa Marcil) was also the groom's best man, and sported a jade bracelet blessed with ocean water.
Fox's Armani Privé gown featured a 16-ft. train. Her husband also wore an all-white Emporio Armani ensemble for the ceremony.
"They were beyond happy, and they seemed so comfortable," a friend of the couple's tells PEOPLE. "They decided a long time ago that they belonged with each other."
For more on the couple's wedding, pick up the new issue of PEOPLE, on newsstands Friday