Dennis, I doubt you'll have much free time, but the Submarine museum at the Groton base is a worthwhile place to visit.
Also, Mystic is one of my favorite places. If you get a chance to get up that way, the Old Mystic Seaport museum is always worth a visit, as is the Mystic Aquarium.
The Seamen's Inn (located at the museum) has really turned around, great food & not too expensive. For the best meal you may ever have, I highly recommend the restaurant at the Inn at Mystic - it's called the Flood Tide. Expensive, but worth it. The eggs benedict with lobster may just be the perfect breakfast!
I'm sorry I can't be more help with stream info, I haven't had a chance to fish there yet.
Good luck with the new job!