Bindi Irwin and her longtime boyfriend Chandler Powell are engaged! The 21-year-old conservationist announced the exciting news on Instagram with a handful of sweet photos of Chandler proposing. The couple first met in 2013 when she was asked to lead his tour group around the Australia Zoo. Since then, they've been all around the world together, hiking through nature and visiting wildlife preserves. Chandler even visited Bindi during her winning stint on Dancing With the Stars. No matter how solid your relationship is, looking through these pictures will make you envious of their sweet romance.