As you go deep into the Olympic National Park you get to Hoh Rain Forest Visitors Center. This is a great place to visit with children because you can take some easy but beautiful trails here. If you want to hike 17.5 miles then you'd love Blue Glacier trail but if you only have one day to explore this park there are a few easy loops which you can take with your children. We hiked two very short hikes. The Hall of Mosses trail is only 0.8 miles and the Spruce Nature trail is 1.2 miles long. The Hall of Mosses will take you into a Northern Rainforest where you see all the moss hanging off the trees and the vegetation is dense here. The other loop (Spruce Nature trail) shows you different parts of the canyon. It takes you off the Hoh River so you can see all the natures elements that make up this beautiful place. Hoh gets as much as 14 feet of rain a year and due to fog and mist it is like it receives another 30 feet of rain. The conditions are just right for moss to grow and flourish. The best time to visit Hoh Rain Forest is April or May. read more