Lately it seems that it doesn’t matter when we cruise locally, theres always plenty of kids and it’s been crowded. Maybe summer has more kids, but we don’t know because we don’t cruise at that time of year.
We’ve done a couple of cruises during Halloween and it’s really fun on a ship. Last year we were on a TA on Odyssey at Halloween and they had a parade, best costume, and other events. Lots of fun!