For the most part the June fishery around Bamfield is, a best kept secret. Mostly Washington and Idaho bound springs, with a few Cowichan and Chilliwack fish in the mix. Expect to catch a limit of fish ranging from 8 - 20 pounds but quite a few times I've caught 40# plus fish in June! I've had 60+ springs in one day at Kirby Point.
Coho show up right about the middle of the month, and some years they never leave.
And very few boats.