Juneau: Alpine Zipline & Glacier Adventure JU67. 5.25 hours, 199$. zip from one tree to the next, you'll land in tree houses with unique Alaskan themes on this Certified Green Eco-Tour. Once your tree-based adventure is complete, embrace your "inner Lumberjack" and try your hand at Axe Throwing! Come back to the lodge and relax by the fire, shop for souvenirs, and watch a slideshow of photos from your tour! The last stop is Mendenhall Glacier.