We've taken our kids there and they enjoyed it. They really like going to the kids' clubs and usually ask if they can go multiple nights (answer - no). It's $11/hour per child I believe. There is a small discount for something - either DVC or AP holders, I can't remember which - or it might be for both.
They quoted $11.50 on DIS for the Sand Castle Club, so it probably has the same discount. I am going at the end of May, do you have to book this in advance?
4 and potty trained
I called recently to book it and the CM was clueless. I need to call back and make sure it's correct...she kept saying Simba's Clubhouse and I was like NOOOOOOOOOOOO SANDCASTLE CLUB..over and over..ugh Then she asks how many adults with be going.....what?! I said it's for children only. She was like..oh yes of course...omg! It was the most frustrating phone call ever!

Just so you know, I booked my son in the Neverland club two months ago for our trip in June and we got the last slot for that night. I would recommend calling as soon as your plans are finalized and reserve a spot.![]()