Great place! Lots of varied paddling. Don’t miss a paddle out to White Cliff Islets. Best whale watching is on the outer edge, around Blackfish Sound and Swanson Island. Expect fog. Pay attention to tides & currents & plan to travel with them — heaviest around Johnstone Strait and the channels between the islands on its northern edge. Get a copy of the Wild Coast guidebook that covers this area — so much valuable info.
My trip report from 10 days in the region in 2017: http://aubade1.blogspot.com/2017/12/kayaking-in-broughton-archipelago_3.html?m=1