There are many threads about things going on around Halloween, but check out Mickey's Not So Scary Halloween Party or MNSSHP as it is known here. This hard ticket event is a family favorite and we have been for 2 years in a row. Also, while I have not been, I understand you can "trick or treat" in pleasure island, not sure of the details. Either way - have a great trip and make sure to tell everybody that it is your wife's birthday and get a birthday pin from guest services!