There are many things to do while visiting Honolulu Hawaii. The fact that this island is made from volcanic activity gives it some unique natural sights such as the volcanic cones. The Punchbowl crater is the home of the National Memorial Cemetery of the Pacific . This is were the United States honors the men and women who served in WWI, WWII, the Korean War and the Vietnam War. The remains of soldiers have been relocated to this site from places like Guam, Wake Island and even some POW camps from Japan. They are home again in their own country were they belong.
Diamond Head is another volcanic cone near Honolulu that is estimated to be 150,000 years old and has not erupted in since it was formed. It is close to many honolulu luxury hotels so it is well visited. There are some great hikes that go along the rim of the crater it takes almost 2 hours to get around. Bring lots of water and enjoy the amazing views and fresh air while exploring this massive crater.
For more volcanic view check out Koko Head which is a volcano that created couple cones. One is Koko Crater which has a spectacular well formed and high crater and the other makes up the Hanauma Bay that is a cone filled with ocean water. Whether you see the crater by boat, land or plane it is really beautiful. There are some areas to explore such as the Lanai Lookout which gives distant views across the Kaiwi Channel, the Halona Blowhole along the rocky shore and Sandy Beach were one might catch a good wave or fly a kite. Halona Cove is a film site were Burt Lancaster and Deborah Kerr filmed a famous love scene. The area is all around romantic.