My hubby's 40th Birthday is gonna be coming up in Sept. something. I have been saving money for his big day. I will be taking him to "The Cheese cake factory" like I wanted to last year but could not afford it. Also, I will be taking him to the Submarine tour. Also, I am going to take off for a week, or try to anyhow. So we can spend time together. Oahu and Honolulu submarine tours - 877-742-7893 - Oahu submarines and fun things to do - Hawaii tourist activity Information. Menu: Welcome So what did you do for your 40th birthday or planing to do when it comes up? I really don't want to think about turning 40! For you ladies out their, do you feel different about being 40? You men, same question..." Are you where you want to be?