Travelzoo continues to discount a number of Enjoy Napa Valley Napa River Guided History Kayak Tours in Napa, CA, as listed below. This tour has 5-star ratings on both Yelp and TripAdvisor, and features guides who talk about the history, fauna, and wine of Napa Valley. Book this travel deal by October 31 for visits through the same date (except Wednesdays). The deals: