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 off shore. It’s ideal for long, leisurely walks, family outings and all kinds of aquatic activities. The beach has a gently sloping sandy bottom with usually calm waters; it’s good for swimming year-round, especially in the morning. The wind can blow any time but generally kicks up in the afternoon.