When we were at Sandpiper, the 4-5s and 6-7s were combined because of low census (early November). That was fine. 8 and olders actually have different things they can do, like sailing for one, that the younger group isn't allowed to do. My kids had loads of fun there and went from 9-4 daily to kids club. My 5 year old at the time wanted to go back to club for dinner and evening activity also, but I told her I had to see her some on our family vacation! There is certainly the option of doing partial days with the kids club. When we were in Cancun Club Med, my kids would do the mornings with the club and then hang out with us at the beach in the afternoons. You can check the schedule each day, so they don't miss out on trapeze or whatever your kids like best. happy to answer any additional questions.