"Celebrating 1 yearish, by visiting the hotel where it all started," he wrote, tagging The Williamsburg Hotel. "Thankful for every moment I have with you @nnataliejjoy ❤️.
Viall, 40, also shared a picture of him kissing 22-year-old Joy while she took a mirror selfie. Joy clearly approved of the sweet post, commenting, "Kiss my cheek forever!!! ❤️"
Joy shared her own pictures from their romantic getaway, writing, "This has been the best year of my life, and it’s because of you," Viall replied, "Right back at you ❤️."
The couple got plenty of well-wishes from Bachelor Nation, including from Ben Higgins, who commented on Viall's post, "She's lucky." Meanwhile, Demi Burnett commented on Joy's post, writing "Not because you met me? 😜 love y'all so much ❤️."
Viall made things Instagram official with Joy, a surgical technologist, in January. ET spoke to Viall last August, and he said having a family was still his No. 1 priority since first trying to find love on TV as a contestant on Andi Dorfman's 2014 season of The Bachelorette and later on The Bachelor.