Oahu's North Shore is famous among the surfing set, so it's no wonder the surfing pros come here to show off their skills and the mesmerized fans flock to watch safely from the shore. The Bonzai Pipeline is one of those beaches known for its waves, which can be both awe-inspiring and treacherous. During the winter, the oceans churn and the waves curl up to 30 feet high before they hammer into the sandy shores.