There are a number of different types of collagen; the most prevalent two in the human body are types I and III. In fact, type I collagen is the most abundant protein in the human body â it is present in almost every type of tis-sue.1 Bone contains almost exclusively type I collagen. The collagen network in bone confers structural strength
1 See some of Oahuâs gorgeous beaches â Kailua and Lanikai beaches. Some consider Lanikai Beach to be the most beautiful in the world. See our post on visiting beautiful Lanikai Beach.  Byodo-In Temple near Kaneohe is simply stunning.
For panoramic views of Oahu's Windward Coast and the cliffs of the Koolau Mountains, grab a sweater and head to the very windy Nuuanu Pali Lookout, located five miles northeast of downtown Honolulu along Pali Highway at an elevation of 1,186 feet.ahu. A popular Oahu activity, says Frommer's, is hiking to the summit of the 750-foot Diamond Head Crater, which formed 350,000 years ago.