"Everwhere ya went on the island the views were amazing," Brittany wrote alongside a photo of her and her husband cuddling by the water.
Brittany explored the island's rocky coast while wearing an orange bikini top and high-waisted black shorts.
Brittany waded into a natural pool and looked elated to witness the waves crashing into the coast.
After he hiked up a mountain, the NFL star flashed a thumbs up next to a sign which read, "Only You," perhaps as a shoutout to his new spouse.
While on her honeymoon, Brittany posted a black-and-white bikini pic of herself, where a large tattoo on her ribcage was fully on display.
"Still rocking this blue and white vibe," Brittany captioned a selfie where she wore a white shirtdress featuring a sexy side cut-out and accessorized with light blue strappy sandals complete with a bow on top and a matching Dior handbag. Patrick coordinated in a light blue button-up shirt, ripped jeans and light blue sneakers.
While posing poolside in a blue bikini, Brittany described their villa's view as "pure perfection."
While soaking up the sun aboard a boat, Brittany showed off a light-colored triangle bikini, styled with an on-trend bucket hat and retro-inspired shades.
The couple was all smiles as they splashed around in St. Bart's famous crystal blue waters.
Before heading out for the night, the high-school sweethearts snapped a stylish selfie in the mirror. Brittany flashed her abs in a sexy white crop top and matching skirt, while the athlete donned a colorful, short-sleeve button-up and distressed jeans.
While on their trip, Brittany posted a video that zoomed in on her husband's new wedding ring, with the caption, "oh he married."
"Such a perfect honeymoon," she wrote alongside a photo of the newlyweds dressed up for dinner.