There are plenty of good campsites in Johnstone Straight/Broughtons. Flower Island is now closed 😕. We’ve always favored White Cliff Islets. Its open, sunny, and very picturesque; it’s absolutely the best spot for watching humpbacks. They feed all around the islets and often come quite close. It is more exposed so maybe not the best of you expect bad weather. Landing is slightly tricky on rock; it can be slippery at low tide. Leg Cove is nice, very protected but can also be quite damp and cool. Owl and Cedar Islands are good options. All the camp sites in the area can be crowded, especially with tour operators. We’ve found it’s best to arrive at sites in late morning if you can. There are currents so you should have the current tables for both Blackney Passage and Weynton Passage and plan accordingly. They are available at https://tides.gc.ca/en/current-predictions-station. There can be currents in spots around the Plumpers as you pass through. Its a beautiful area and you will probably encounter humpbacks, porpoises, sea lions, orcas.