Had a great time hiking Diamond Head! You get several spots with great views of the island as well as the interior space of diamond head. The hike isn't too strenuous but some people did have to stop on occassion to collect their breath. All of the other hikers on the trail were very friendly and courteous, especially when you get to a dimly lit tunnel area you have to walk through. After the hike, there is a Hawaiian Shave Ice truck at the base. We didn't try it out, but there were a lot of customers.