Bridal Falls Provincial Park is just east of Chilliwack on the Trans-Canada highway. The park has several lovely picnic loactions, a nice forest walk, and (of course) a tall waterfall. This picture shows detail from the very lowest part of the falls. The photograph has quite a lot of detail and makes a very good large print. It should show well as the background on a large monitor.
Below is an image of the whole falls, the detail is just right of the logs at the bottom of the falls.