Johnson, 40, showed off their stunning view of the ocean, while proudly sporting a white swimsuit reading, "Mrs." She also changed her Instagram handle to her new last name, which now reads, "kymherjavec5678."
The Shark Tank star and the DWTS pro tied the knot late last month with a lavish ceremony in Los Angeles. Celeb guests included DWTS judge Carrie Ann Inaba, as well as former contestants Lance Bass, Joey Fatone and Donny Osmond.
"I think it was instant," Derek Hough told ET about Johnson and Herjavec's connection when we spoke to him last May. "When I found out they were dancing together I was like, first of all, that's the man of her dreams. The fact that he felt the same about her -- I couldn't be happier for them."
Watch the video below for more on their gorgeous wedding!