I visited in last summer with my kids & mother-in-law for 1 night only as I found it a bit expensive.
If you spend 2 nights there with kids, you may consider to stay in the resort on 1st day to enjoy Snokelling, kayaking. The 2nd day, you may take the boat to downtown for shopping & lunch. If it is Sunday, you may visit the Sunday Market too. It is near the pier. Then relax in the evening, enjoy the evening drinks, visit the Eco Research Center. You may find turtle if there is any.
For my family, the kids preferred to stay in STAR longer instead of Gayana!
Just back from STAR.
Very good for kids. There are 3 water slides to play and my kids, one is 5 1/2 and one is 1 1/2, really enjoy playing there.
Also, there is a kids club, free of charge. If your kids age above 4, you can just leave him there for playing.