Kids club on Sapphire

Glad to hear all the good input on the Sapphire as we are sailing this weekend on it. Does anybody have 1st hand experience with the kids club? We are on a family (20 of us) vacation and there are 5 kids (5-13) going with us. We want their time to be as enjoyable as ours so I dont want to put her in something she will get bored with. Does anyone know how that works with days in port. I know the schedule says three hour shifts (9-12, 2-5 etc) does that apply on port days also? Just need to figure out if shore excursions will be interrupted. Thanks for any input.