What accomodations are you getting? They have studios (which sleep 4, with a mini kitchen), 1 bedrooms, and a 2br unit (which is a 1br+studio (lockouts)). The rooms are VERY nice.

There are definite activities for children there. If I still have an activity list from when I was there (Oct 2009), I'll see if I can scan it.

No beach onsite, the resort is on a bluff. I think there's shuttle service that will take you to the Princeville Resort, they have a beach there. If you don't mind hiking, there's a path (pretty steep one!) next to the the Villas that you can walk to get you down to the beach below the bluff.

Jeff