I live in the Kerry Dark Sky Reserve, so can share a bit of first-hand knowledge! (the stars were spectacular last night, by the way, even WITH the full moon!).
Killarney isn't technically in the Dark Sky area. The light pollution there is terrible. We can see the glow in the sky all the way to the hills of Waterville. Really.
I'd suggest Waterville, Portmagee or Knightstown (Valentia Island) as they 3 all have hotels open year round. We have parties in Waterville and Portmagee for New Years Eve, and I don't know about you but the idea of going to Dingle with 10,000 people sounds like a TERRIBLE crowd! That was the number this past weekend. Waterville was a blast - the kids events start at 8:00 pm and it is a fun, but family friendly, night. My husband and I ate at The Butler Arms Hotel and it was superb. Keep in mind we book 6 days before NYEve and didn't get the seating we wanted, so things fill up fast that night around here! Also for the teens (if they're older teens) a disco starts at The Sea Lodge at 1:00 a.m.! (ah, to be young...)
I was in Portmagee for lunch at The Moorings at 2:00 pm on NYEve and it was heaving..... so I can imagine in that tiny area it was probably pretty crazy by midnight!
Technically Ballinskelligs beach isn't on the Dark Sky area, either - due to the lights in the car park. But it's still pretty darn impressive ti walk on that beach in the dark on a calm night and see the stars!
If you'd like a guide, I'd suggest Steve Lynotte (or Lynott) - he's very experienced in the stars and the area. 353-87-258-2845. I couldn't find a website, but I know he does tours! He's based near Cahersiveen/The Glen area.
I did give a Dubliner some tips on backroads a few weeks ago, and he emailed me later and said it was awesome and he didn't have to go into the mountains as much as he was expecting to before he talked to me.
I have a sister that lives near Yellowstone; another near Rocky Mountain National Park. Trust me - the stars when I walk out my door in the Cable Station area, with a street light near my door, are better than ANY I have seen in America. It's just amazing!
And remember - best seen farthest from the full moon!
Susan
Expat living in Waterville.