http://en.wikipedia.org/wiki/Whale_watching

Whale watching is the practice of observing whales 
and dolphins (cetaceans) in their natural habitat. 
Whales are watched most commonly for recreation (cf. 
bird watching) but the activity can also serve 
scientific or educational purposes.[1] A 2009 study, 
prepared for International Fund for Animal Welfare
(IFAW), estimated that around 13 million people 
went whale watching globally in 2008. Whale watching 
generated $2.1 billion per annum in tourism revenue 
worldwide, employing around 13,000 workers.[2] The 
size and rapid growth of the industry has led to 
complex and continuing debates with the whaling 
industry about the best use of whales as a natural 
resource.

Organized whale watching dates back to 1950 when the 
Cabrillo National Monument in San Diego was declared 
a public venue for observing Gray Whales and the 
spectacle attracted 10,000 visitors in its first 
year.[1] In 1955 the first water-based whale watching 
commenced in the same area, charging customers $1 
per trip to view the whales at closer quarters.[1] 
The industry spread throughout the western coast of 
the United States over the following decade.[1]

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http://whalewatch.com/photos/
Photo gallery
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http://www.bostonharborcruises.com/whale-watch/
Text & photo gallery
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http://www.montereybaywhalewatch.com/
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Pic 2:  1280px-Ballena_jorobada_y_ballenato_en_Bahía_Málaga