Dangerous Waters' multistation mode combined with a generally immersive experience in the lab will go very far, in my opinion, in showing young adults the types of responsibilities one has as a team member on a combat vessel. I would recommend you starting out as the capitain and then handing that responsibility off to varying members.
In addition, the DW Mission Editor is allows you to create a wide variety of scenarios, and many many options for non-combative operations, allowing you to simulate drills and procedure checks. After they have trained, perhaps you can create a scenario where they face a sudden ASM attack or hostile submerged track and they can learn the difference between practice and response under pressure.
DW as a tool for building team work, interest in the Navy, and naval operations knowledge, spot-on and definately an A+, IMHO.
In terms of the age, I have been firing ADCAPs since I was 8.
I think the interest level needs to be gaged in terms of how seriously the excercise is run. It should certainly be fun.
