Sorry to chime in here but I had to tell my story. I was on a dive trip a few years ago and never had given whales a thought. While motoring between sites a humpback calf breached about 30 feet from your 20 foot dive boat. We all went crazy including the boat captain. Just a few seconds later, the mother breached between the calf and the boat. Holly crap. We almost fell in. The DM asked if we'd like to snorkel rather with them. Stupid question! We all slid silently into the water and swam with them for well over an hour. The most difficult thing was deciding to put your head in the water or on the surface. One of the best and most "religous" days of my life. As luck would have it, we had a videographer with us that and he captured much of the encounter on tape. Sorry to hijack the thread but it's one of my favorite moments. (sorry it was in Moorea).