One of the most wonderful experiences in Puerto Vallarta is seeing a humpback whale breach the surface in Banderas Bay. They migrate down the Pacific coast from Alaska to Mexico where they spend November until February in the Bay. The Banderas Bay has been host to several families of whales. They come down to enjoy the sun and mate.
Two males will fight it out for a female. If you are lucky enough to watch one of these you will see them showing off their prowess in the water. They slap their flippers and communicate with one another. They also sing a song. These songs are long complex songs. The songs are uniquely different from one group to the next and they can last up to 20 minutes.
There has been a movement in Mexico to protect these whales. They have noted that there are less and less whales being seen. The government has passed rules for boaters to stay within a certain distance of them.
The humpback is a slower whale and it likes to breed close to shore. This is one reason they are easy targets for whalers.
Below is a link of one such organization freeing a whale from a net. If you watch to the end you will see a speculator performance from the whale as kind of a thank you for the freedom.
click on the link or copy and paste it into your search area.