It’s been more than two decades since Rob “Boston Rob” Mariano and Amber Brkich found love on the beaches of Survivor. The couple — who met while competing on Survivor: All Stars — celebrated 20 years of marriage on Thursday, April 17.

“So crazy … 2 kids that met on an island,” Rob, 49, captioned a tribute post dedicated to his wife, 46, on Instagram. “Happy Anniversary! #20Years.” In the photo, a framed picture of the couple — likely taken from the show — captured a smiling Rob holding Amber in his arms as she lovingly wrapped hers around him.

Survivor’s official Instagram directly replied to the adorable post, writing, “The most beautiful love story to grace our TVs.”

Rob and Amber’s love story began when they were contestants on Survivor: All-Stars, which aired in 2004. The pair quickly connected and formed an alliance that soon turned romantic. Their close bond carried them all the way to the final round, where Amber won in a close 4-3 vote — after Rob proposed to her just before the winner was announced.

“I’ve seen you at your highest high and your lowest low and between it all we work together as a team to accomplish so much,” Rob said during the episode. “And in the end, I ended up falling in love with you. You’re the most amazing person I’ve ever met in my entire life and I want to spend the rest of my life with you.”