They hit a rock by Aaron Island. 
Whale watching boats zip around Favorite Channel and show little courtesy to smaller boats. They put out huge wakes that could swamp a small skiff. My son and I had out of state guests last week who were amazed at the disregard that some of these skippers showed toward other vessels. Not to mention that they congregate around whales well within 100 yards then zip back to Auke Bay for another load of passengers. It's a wonder that there hasn't been a major disaster involving these tours. 
There a lot of rocks in Favorite Channel. Like , say, Favorite Reef?