At the level of the library, there’s an exit that takes you to the garden with café and park – an ideal point to take a short break. A little further along the Witte Singel, at the end of the park, is the Old Observatory Leiden – the oldest university observatory in the world. On the other side of the canal, at this level, is the first of the "Muurgedichten". These are poems printed on house walls, and there are over 120 in Leiden. Shortly after the Vreewijkbrug, you come to the Erfgoed Leiden en Omstreken (ELO), one of Leiden's 13 museums. The tour continues past the southern end of the city centre, gradually becoming more spacious and green. Now the tour takes a northerly direction, passing under two bridges and crossing the Nieuwe Rijn, where there are many houseboats. A gigantic building complex on the left of the Zijlsingel cannot be overlooked: the old flour factory, a symbol of Leiden's industrial history, which is currently being converted into a multifunctional event venue.
At the next intersection with the Oude Rijn, the tour continues straight ahead through the Heren- and Maresingel. Shortly before the next picnic area in Huigpark, you have the option of turning left and returning through the city centre. More information on the city centre tour can be found here. Brave paddlers now have to face the biggest obstacle of the tour, as there is no way to cross under the Papegaaibrug bridge at the Uniper plant. The tour continues through the Rijnsburgersingel canal, where the terrain opens up again. A quiet ride past the De Valk windmill brings you to the Museum Volkenkunde – one of the oldest ethnological museums in the world. After another left turn, you reach the last bridge: Morspoorbrug and the gate of the same name to its left, one of two remaining of Leiden's original ten city gates. After mastering this final hurdle, the route takes you back past the De Put windmill to the starting point.