“Watching the sunset with lemurs jumping in trees overhead @australiazoo. What a perfect way to end the day #Blessed,” Irwin captioned the sweet picture.
Irwin and Powell, 19, met in November 2013 and have kept up a long-distance relationship ever since. (Powell is currently attending college in Florida while Irwin lives in Queensland, where she works at the Australia Zoo.)
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Irwin returned home to Australia earlier this month after living in Los Angeles for several months to film DWTS. She previously told PEOPLE that she plans to continue living, working and taking online college courses at the zoo for the foreseeable future.
“Australia will always be home,” she said. “Living at the zoo, it’s a lot easier to study online because I have all the tools at my fingertips. I can learn from my surroundings. That helps a lot.”
She added, “I’ve really been focusing on getting through school so that I can focus on what I love – my conservation work, working at Australia Zoo and filming. Those things are where my heart truly lies.”