Some excellent video can be seen from Jean Michel Cousteau's recent visit to the Amazon River basin in Brazil and Peru on the link below.
If you get a chance to see this series you will not be disappointed. The is some excellent Amazon tidal bore footage. Also more proof of global loss of the Amazon jungle and global warming.
Also there is a look at how wild species are being depleted in the Amazon and sold off. This is why I do not buy any animal or wood that comes from South America.
It is amazing that people in the Amazon basin import fish for themselves to consume.
I highly recommend all surfers take a look at the research that Jean Michel Cousteau is doing to protect the oceans of our planet.
http://www.pbs.org/kqed/oceanadventures/index.html?campaign=pbshomefeatures_3_jeanmichelcousteaubroceanadventures_2008-04-10