See the highlights of Utrecht's medieval inner city during a cruise on the Oudegracht canal. Learn about the city's history as you pass centuries-old buildings, canal houses, wharf cellars, and the Dom Tower. Exchange your voucher at the ticket office and collect your audioguide. Then, descend the 21 steps to the waterside to board your boat. Once you are settled, the boat will set off along the Oudegrachtn (Old Canal). Admire the oldest part of the city, which dates back to Roman times. Then, pass the highest church tower in the Netherlands, the Dom Tower. Marvel at other significant historical buildings along the route. After half an hour, arrive at the city's outer moat, a former defensive structure. Learn about the old strongholds and casemates there. Take photos of the beautiful Zocherpark. See the Railway Museum or Hoog Catharijne, the largest mall in the Netherlands, from the water. Return to the Oudegracht canal and watch people enjoying themselves on the wharves. Try and spot the typical wharf cellars. Once back on dry land, you will have a good idea of what you want to visit next.