Just in case someone else is on the lookout for some summer camps - I found this site that could be helpful for you too.
http://www.expatechodubai.com/kids/summer-camps-in-dubai/
On a separate note, which one is better ACTIVE UAE or Dubai Holiday Camps
TIA
Hi FG, it's probably a bit early to be asking. If it's for Spring Camp, a few are being advertised now. For Summer Camps, a few weeks before Summer there'll be loads of listings including on here. Time Out usually do a good review of all of the Camps. There are so many on offer here, from Drama to Sports to Art/Craft etc.
You'd be better asking at the start of June. :)