Kayak and canoe rentals are available from Jenny Lake Boating for either $20 per hour or $80 per day. Rentals are first-come, first-served. Motor boating permits can be acquired at the visitor center, and cost $20 per day or $40 annually. Part scenic-tour, part water-taxi, the Jenny Lake shuttle is like nothing else in Jackson. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.