Episode 5 of the Jean-Michel Cousteau's excellent 6-part Ocean Adventure series continues tonight (September 20th); the final installment is next Wednesday. According to PBS, the final two episodes will cover all 13 of the US' National Marine Sanctuaries and the Northwestern Hawaiian Islands National Marine Monument.

In addition to showcasing the Sanctuaries' beauty, Cousteau and his team will also document how these sites are conservation challenges. Over the course of the expedition, Cousteau and his team will dive among goliath groupers; humpback whales; the giant Pacific octopus; spawning coral; and numerous shipwrecks. If you want to whet your appetite, check out the video preview available on PBS.

[Thanks, Dad!]