What is life like for a Nuke in the Navy?

My nephew is wanting to join the Navy (woohoo!) and is looking at being a Nuc. (He didn't say WHICH nuc he wanted to be.) So, of course, he called his Navy Auntie. But here is my problem. I was a brown shoe. We didn't really encounter nucs off ship (ya known, in the wild!). And even then they always seemed kind of a mystery to us. Plus, I got out in '06. I have no recent tales to tell. Can anybody tell me what to tell him about life on board ship & on shore for nucs? THANKS!