Backgrounder: California is one of the nation's top shipping, boating, fishing, and pleasure craft destinations in the world. With Port of Long Beach and Port of Los Angeles combined commercial shipping business, Southern California ranks as one of the top ports in the United States. Long Beach Municipal Marina system is the largest municipal marina in the United States, serving around 4,000 boaters with mooring space. In addition, cruise ships carry thousands of passengers to exciting vacations from Long Beach, San Pedro and San Francisco, making the cruise industry one of the many reason Californians love their ocean-faring vessels. From 1,000 miles of Pacific Coast in California with dozens of pleasure craft and commercial harbors, to inland lakes where boating is king such as the Sacramento Delta and Shasta Lake, the houseboating capital of the world, you're seldom far away from a boat ride in California.