There's a lot to see right here where Long Point ends and agricultural land begins. On a clear day… you can see three state parks from here. To the west there's Mt. Tamalpais rising nearly 2,500 feet above Marin. To the south… is China Camp State Park where you can find one of the biggest and most intact of the Bay's original wetlands…and another beautiful section of the Bay Trail. And to the east, about 30 miles as the crow flies… is the summit of Mt. Diablo, at 3,864 feet above the level of the Bay where we're standing. Right in front of you is agricultural land where hay is currently grown. This was once tidal marshland… but you can see the levies and dikes that were built so the marsh could be drained to make room for farming. Much of this diking and draining took place more than a century ago to help feed a booming and hungry San Francisco. Besides, marshes weren't valued. In fact, they were considered to be health risks and breeding ground for mosquitoes and malaria that needed to be drained. And so the Swamp Lands Act of the mid-19th century encouraged farmers and others to drain swamps… and in return… they'd get ownership of the land. It's only in recent years that we've rediscovered the profound ecological values of marshes. Now we've turned the tide… and are restoring some of what we've lost. The south end of the trail… is just ahead.