Here are a few shots of different riverbanks using a long exposure technique, this technique allows to get a flat river, no more waves shapes on your picture. It allows too to better capture all kind of lights. But one of the best benefits from this technique is the possibility of obtaining a picture of a touristic area/building without any people on it, or a nice “ghostly” people effect. And if you get lucky with the weather you can get some awesome clouds movement on your results.

f/22.0
10 secs
ISO 1000

f/22.0
20 secs
ISO 100

f/22.0
13 secs
ISO 100

f/18.0
15 secs
ISO 100

f/22.0
30 secs
ISO 100

f/22.0
8 secs
ISO 640

f/25.0
13 secs
ISO 800

f/14.0
30 secs
ISO 100