The old wharfs along the Oude Gracht canal can be explored but at your own risk.
Prepare yourself for steep stairs, slippery parts uneven pavement and no no fence at the water side.
The old city is a pleasure to wander and architecturally stunning. The buildings have varying facades, gabled and otherwise, which are well worth taking in but don't forget to watch your feet too!
If you decide to walk under the Dom Tower be aware that some city buses use this 'road' as well. So better listen and when all is quite.. walk under the tower..
Beware!... Black russian terrier ?????
Hahaha, saw this sign on a door in the centre of Utrecht, and thought it was quite fun.