One of the larger concentrations of blue whales is in the region of the northern Channel Islands in summer due to the high concentration of krill. During cooler years (like last summer and this one), the whales are often seen further south as well. On a dive trip to San Miguel about a year or two ago, we saw five of them. There were two that were hanging out right off Avalon Bay. Two friends of mine were heading out to a dive site in a fast boat when a blue surface right in front of them off Catalina. They struck the whale, went airborn over it and there was $32,000 of damage to the drive train. Apparently the whale was unhurt.