Mentioned by Lonely Planet Top Choices
Top things to do in Hawaii
"A wide arc of sand drapes around the jewel-colored waters of Kailua Bay, with formidable volcanic headlands bookending either side and interesting little islands rising offshore. It’s ideal for long, leisurely walks, family outings and all kinds of aquatic activities like kitesurfing and windsurfing. The beach has a gently sloping sandy bottom with usually calm waters; it’s excellent for swimming year-round, especially in the morning. The wind can blow any time but generally kicks up in the afternoon."