BEVERLY HILLS, CA – MAY 05: Robert Irwin, Bindi Irwin and Terri Irwin attend the Steve Irwin Gala Dinner 2018 at SLS Hotel on May 5, 2018 in Beverly Hills, California. (Photo by Jon Kopaloff ...

"I'll remember this day forever," Bindi wrote on Instagram alongside photos of her and husband Chandler Powell's scenic mountain hike Erin Clack is a Staff Editor for PEOPLE. She has been writing ...