The memorial site is open year-round but closed on Christmas, Thanksgiving and New Year's Day. This is a totally 100% free attraction for you to visit in Honolulu. Admission is free and special event tickets are FREE but given out on a first come, first served basis.
You can learn more about Pearl Harbor and the USS Arizona Memorial by visiting their site online. You will find a complete schedule of events, hours of operation and a brief history of the memorial site. This is definitely one place you need to see when visiting Pearl Harbor in Hawaii.
Note: You can click on any image in this travel blog post feature. It will automatically open up into a slide show so that all images can be viewed in a larger size. Nice way to see close-up details.