There is no difference in price if you choose a tandem or a single kayak. We like to offer that we have both types of kayaks to our customers and want them comfortable in what they are used too. Plus many times groups have odd numbers and want to be on their own we think you should have a choice on what type of kayak. Youth prices are listed 8-11 but remember if you have a large group 3 or more call us direct we offer discounts.