Guam U.S.A. Guide & Dive Map - Waterproof Map
Frank Nielsen is a self-described "ocean nut" born in Bountiful, Utah. He learned to love watersports while a teenager, when his family was posted to Beirut. Later he earned a Bachelor of Science in Ocean Engineering and worked for the U.S. Navy until 2000, when he became a full-time cartographer and map publisher.