While on a forest slope above Discovery Bay I heard what I took to be a loud boat out in the water. But it turned out to be a pipe discharging a jet of water into the bay.
When I reached the shore I noted the sound and white water. The rock lined shore is rip rap associated with a former railroad to Port Townsend along the coast on this shore reach.
Water diversions and route to PT
Given that in its early days Port Townsend suffered from a shortage of water, the city celebrated its new water source with a man made waterfall in Chetzemoka Park discharging excess water. An informational sign in the park has a blow up of a post card sent to Bellingham showing the waterfall as a message of plenty of water in PT.