I just visited Pearl Harbor & used Holo Hawaii Tours with my family of 7 in June 2018. Michael talked me into using his service instead of going it alone. Big mistake. I strongly urge you to simply get. IES shuttle service to drop you off & pick you up. Then you buy your own tickets at Pearl Harbor. You will get everything that you need this way & will save several $hundred depending on your group size. Don't worry about tickets - there are plenty. Our "guide" was late, didn't tell us anything about what to do or where to go, & we had to exchange our vouchers for tickets ourselves anyway. The "tour" group did absolutely nothing other than shuttle us to & from Pearl Harbor. Again, you do NOT need them to get into Pearl Harbor or anything. Use a less expense shuttle service, Uber, Lift, Cab, or drive yourself if you have a car. Save that money & hassle.