Courtesy of MagicSeaweed.com:

Halfway up the North Shore, the Kam highway swings wide around a bay called Waimea: the spot that has set the standard for big wave surfing for over 40 years. Although somewhat eclipsed by outer reef tow-in breaks, mere mortals will find the 20-25ft (6.6-8.3m) swells that Waimea can handle more than enough of a challenge. On smaller days, when 'The Bay' proper isn't working, a sandbar section called Pinballs can reel off some juicey little pockets right along the lava rock point. Waimea's shorebreak is a gnarly mix of crashing lips and powerful pockets; once avoided, today it's packed with suicidal bodyboarders and even a few stand-up surfers.