Desolation Sound (photo above by Ian Douglas), north of Powell River, has been attracting recreational boaters for decades and it is one of the coast's most popular destinations for kayakers as well.
In 1973 the province created Desolation Marine Park to protect the area from development and resource extraction. The history of the park and its relationship to the local Sliammon First Nation is the subject of a recent podcast from the enterprising folks at NICHE, the Network in Canadian History and Environment. The podcast (here) features a conversation with doctoral student Jonathan Clapperton about his research on the park.
By the way, if you are interested in learning more about the history of Desolation Sound, I highly recommend Heather Harbord's book, Desolation Sound: A History (Harbour Publishing).