Overview: Cranberry Farming Oregon cranberry farmers call the south coast the NAPA valley of cranberry farming in the US. A longer growing season produces sweet berries. But don’t believe the myth that they grow in watery bogs. Cranberry fields are flooded only two days a year to help the farmers get the berries off the vine at harvest time. Grebes Walk on Water How on earth do grebes dance on the surface of the water? Thanks to high speed cameras we see just how grebes can propel themselves as if they walk on top of the water in the Upper Klamath Lake. It is an amazing sight. North Umpqua Geology Join us on a journey to another Oregon location that is unique in the world. Southern Oregon’s North Umpqua River is one of our more dramatic landscapes: a place where rivers collide and three distinct mountain ranges meet. It is an incredible trip into this geologic wonderland.