The Different Days of Winter

I have lived on this island my whole life. I NEVER get tired of the drive to the north shore, the sand in my car, or the ice cold water of the bays showers .During the winter months alot of us who are at the bay almost everyday during the summer actually miss each other because we either are swimming in pools or other calmer spots on the island. We all miss the warm calm waters of summer, but know that sooner or later winter on the north shore of oahu will be over and we will again meet up, and hash over our winter antics before diving gleefully into the warm calm water. But as long as i live, i will never understand how in the winter waters of the north shore , one day the water can be calm and peaceful and then the very next day, just standing on shore can be dangerous!!! Two pictures , winter water, same beach , different day.