Liquid Alaska's Mendenhall canoe tour is superb. Guides Josiah and Alison have an amazing command of facts about the glacier, the lake, and the environs, and the 5-hour trip is remarkably well organized from beginning to end. This tour has everything for adventurers of all ages: great canoeing on a beautiful lake, spelunking in a real ice cave, and hiking on the glacier. Josiah and Alison take care to make sure everyone is suited up for safety. This is a must-do in Juneau.