Some American friends and I visited Guam for Christmas once when I lived in Saga-ken. It was a loooong time ago (about 12 years! ) so it may be very different now. I'm afraid I have no particular delights to report (apart from cocktails by the pool!). Mostly it was American fast food chains thanks to all the American servicemen based there with their families - pizzas & bugers - but we had no complaints about that since we were very young, it was years before any of the big chains had really made inroads in Kyushu & we wanted us some FUN FOOD after months & months of Japanese food. (Like I said, we were young!) For Christmas lunch we bought a packet of turkey slices, some fresh bread and a bottle of champagne and had a picnic on the beach - classy huh? There were also LOTS of Japanese places to eat, from swanky to mom&pop ramen shops. In fact, it's quite hard to get a taxi driver to take you downtown to find out where the locals eat - if you stay in a Japanese hotel (as we did) the drivers automatically take you to the shopping/dining malls aimed directly at Japanese holiday makers with lots of cash spare, so you have to be insistent or get a bus. We did find a couple of fun bars that locals went to where there was lovely food (again burgers, fries, tex-mex, HUGE portions when you're used to Japanese style) and bands playing, but I guess that won't be what you're looking for with three children. I've probably not been a huge help, but I hope you have a lovely time! Oh yes, did I mention the cocktails?!