Below are a variety of stock videos.
All of the stock footage that you see below can be licensed via the Pond5 web site.

Aerial | Over the water

Aerial | Over tracks to stream

Aerial | River birds eye

Creek | Near Green River

Ferry | Approaching Terminal in Edmonds

Ferry | Approaching Terminal in Mukilteo

Ferry | Passing Space Needle

Forest | Walk through the trees

River | Middle Fork Snoqualmie River

Urban | Seattle skyline afternoon time lapse

Urban | Water Taxi

Urban | West Seattle smoke

Waterfall | Mountain runoff

Waterfall | Snoqualmie Falls