World-renowned zoologist and marine photographer Howard Hall explores the complex ecology of California's coastal kelp forests in this classic underwater documentary. The film dives deep into this mysterious Pacific Ocean realm, examining some of its odd and unusual inhabitants, from the rare basking shark, to otters and sea lions, and magnificent blue whales, the largest animals on the Planet.

World-renowned zoologist and marine photographer Howard Hall explores the complex ecology of California's coastal kelp forests in this classic underwater documentary. The film dives deep into this mysterious Pacific Ocean realm, examining some of its odd and unusual inhabitants, from the rare basking shark, to otters and sea lions, and magnificent blue whales, the largest animals on the Planet.