Snorkeling at Manzanillo bay - whales

I forgot to mention, that if there are whales within a few miles you can hear them when you're snorkeling at Manzanillo - even if you can't see them. If you hear what sounds like faint "Wooo Hooo" or children playing and shrieking in laughter, lift you head out of the water and look around for little kids - if there are none - it's whales. Pretty cool!