Here is the rough schedule.
Day 1 travel to Jax, dinner after arrival.
Day 2 drive to Kings Bay tour sub, lunch, tour TTF, tour IMF, return to Jax for dinner, the events at KB can happen in different orders.
Day 3 drive to NS Mayport and tour surface ship, then lunch near airport and fly out.
Some of the NTO's will go over problems on the trip but the ones I was on recently he did not.
The NTO's on the trip cannot stop your application, only NR can say yes or no to interviewing, there have been a few on trips that they wanted to round file the paperwork but they were not allowed to.