The only race on our list to take place in December, the Honolulu Marathon is truly one of a kind! With its exotic location and stunning sea views, it’s no surprise that the Honolulu Marathon is one of the world’s largest marathons. The course begins on Ala Moana Boulevard, which means “path by the ocean” in Hawaiian. Athletes come from around the world to enjoy this path, which runs along Waikiki Beach with views of the famous Diamond Head! The night before the race, you can relax and fuel-up with the marathon’s all-you-can-eat luau.