An inside look at the environments of both Hawaii and Cuba in this two-episode disc. 'Violent Hawaii' delves into how forces of nature have created a tropical paradise. 'Cuba: Wild Island of the Caribbean' takes an unprecedented look at Cuba's wildlife.

Scottish-born naturalist and writer John Muir undertook a daring adventure in 1867, just a few years after the Civil War. After recovering from an injury at a saw mill, Muir decided that he wanted to explore the world. He left his life in Indiana and walked one thousand miles to Florida. Without any real direction or purpose other than to study the flora and fauna, Muir trekked south through Kentucky, Tennessee, North Carolina, Georgia, and Florida...