With not a soul in sight, the actress and her husband took their chocolate Labrador out into the wilderness to tackle some steep trails.
Dressed in extremely baggy trousers, a black top and beige cardigan, Anne's clothing choice was a stark contrast to the usually trendily-dressed hikers in LA who workout in expensive Lululemon or Nike clothes.
The couple, who were wed in Big Sur, California, in September 2012, linked arms as they walked down the winding path on the three-mile loop in the Hollywood Hills, that has 450-feet of elevation gain.