Festival of the Arts is usually in the earlier half of February & it's probably our favorite festival Epcot does - it's beautiful, the weather is usually cooler but sunny, and the food & drinks are really fun! And the park opens later so you wouldn't have to feel like you're setting early alarms. You'll have all the festival booths, you can check out Space 220, Remy's new ride, the aquarium, Soarin, Test Track, etc. I think Epcot is an easy full day of fun, but I do usually go with adults who like to eat and drink