Waimea Bay is located in Haleiwa on the North Shore of Oahu in the Hawaiian Islands at the mouth of the Waimea River. Waimea Valley extends behind Waimea Bay. Waimea means “Red Water” in Hawaiian. During the Summer the waters are calm and great for swimming. But during the Winter – watch out – even the most experienced of water persons and surfers think twice before entering the waters or even going near the shore break when the swells are large and fast and deadly. Experienced, best surfers in the world ask the lifeguards about conditions, and you should, too.