L.P.
Hotel Albuquerque on Rio Grande has a beautiful pool!! Nice and big! It is also walking distance from old town and museums like Explora and the Natural History ! (Just in case they do get tired of the room) The rooms are not the prettiest, but they can be a good deal, especially if you go during the week. They also have a nice little cafe right in the hotel and QBar if the the adults get a chance to have a drink and live music!
It is right across the street from the park and there is a new Albuquerque Trolley that can give you a tour around Albuquerque so you can even pretend like you are tourists in your own city! Plus lots of other places to eat in old town.