John and Marilyn Hillman of Wilderness Island Tours offer an experience that combines world class wildlife viewing with thousands of years of traditional knowledge.A large brown bear spotted in Alaska.Credit: Sharyn Umaña-Angers/Travel + LeisureOn Alaska’s Chichagof Island, near Icy Strait Point, visitors have a rare chance to witness one of the highest concentrations of brown bears in the world. In some areas, densities reach up to three Alaska…