If you drive yourself, you have to pay a parking fee of $5. A good place to climb the telescope. I do not like climbing mountains, do not like steps, Diamond Head Mountain is either a step or a stone road, for the beauty of the mountain I do not stop. Half way up the hill, you can overlook the crater. Near the summit, there is a small viewing platform. It can overlook the peninsula. The trail is a little challenging. The first half is a ramp, and the second half needs to climb two sets of 175 steps, passing through the remaining U.S. military fortresses. They also need flashlights to go through dark tunnels or old military bunkers. However, walking slowly is not very difficult. After climbing the summit, you can get a panoramic view of the southern coast of Oahu Island and the charming Waikikiki Beach. The viewing platform above is an excellent place to view the whole Waikikiki and take pictures of this trip for self-entertainment. On the top of the hill, I saw a man with five babies in his superdaddy. Chinese dads smelled bad when they changed their diapers. That's the difference.