Credit: Michelle Bruck/; TRB/Fame Pictures

That diamond is certified waterproof!

After a five-year engagement and two kids together, Brooke Burke and David Charvet finally made it official in St. Barth's last Friday with a quiet wedding in St. Barth's, her rep confirmed to Us Weekly.

And on Sunday, the Dancing with the Stars cohost and her Baywatch beau, both 39, kept the nuptial bliss going with a PDA- fest by the beach on the Caribbean isle . After a dip in the water, the drenched newlyweds kissed and embraced, with bikini-clad Burke flashing her sizable new wedding ring. See more pictures from the couple's post-wedding day at the beach.

The couple's kids were by Burke and Charvet's side during Friday's beach-y ceremony. They share son Shaya, 3, and daughter Rain, 4; Burke has two kids from her previous marriage to plastic surgeon Garth Fisher: daughters Sierra, 9, and Neriah, 11.