Shadow Bay Day Use is located on a large bay at the south end of Waldo Lake. It is wetter than either North Waldo or Islet, supporting a more diverse and prolific ground cover as well as more mosquitoes!

A hike to the South Shelter on the Shore Line Trail and then the Waldo Lake Trail #3590 is a pleasant way to enjoy the natural beauty of the woods and the lake, as well as a view of the snow-capped Sisters.