Koko Head is located in the eastern part of Honolulu, Oahu Island, Hawaii. It is close to the famous snorkeling resort Hanauma Bay Nature Preserve. They are both dead craters, but the former is higher than the latter, and the latter has been covered by sea water to form a bay. In Koko Head District Park, there is an abandoned railway track leading to the top of Koko Head, which was built during World War II to transport supplies for military personnel and facilities on the top of the mountain, with a total of 1048 sleepers. But now it has become a popular place for local people and tourists to climb the mountain on foot. Some people can reach the top in twenty or thirty minutes, while others need more than an hour or even give up returning halfway. The reason is that the railway is straight up and down, mainly divided into two parts, the first half is relatively gentle, many people can accept, the second half of the slope makes many people fear, there is a great momentum of my Tianchao Huashan. At the junction of the first half and the second half, there are dozens of metres of air railways, below which are three or four metres deep ravines. Many people dare not pass from the top, but can only bypass the side roads. Upon reaching the top of the mountain, there are many abandoned fortresses and lookouts and other military facilities, where you can enjoy 360 degrees of the beauty of the eastern sandalwood. Makapuu Point, Hanauma Bay Nature Preserve, Sandy Beach and Hawaii Kai are all in sight. Diamond Head and Waiki are also visible in the distance. While enjoying the beautiful scenery at the top of the mountain, we should always pay attention to safety, keep away from the cliff as far as possible, and sometimes blow a lot of wind. When you first come here on foot, don't rush ahead with greedy achievements. When you go step by step, there are too many strong men lying on the railway. We need to pay attention to the sleepers on the railways to avoid being knocked down. In addition to this abandoned railway, there are several wild roads and mountains, but it is not recommended that you try. Safety first, do what you can.