Long in the business, GeoTours offers half-day trips on the Río Patate for $30. Trips last four hours (only two hours are spent on the river) and a snack is included. Also available is a full-day trip to Río Pastaza for $100 that takes 10 hours, with four hours on the river, lunch included and complete gear provided. GeoTours also offers a three-day kayaking course ($150).