B.K.
I live in the area too and this is what I found...
Costume & Mask Making Workshops
Thursdays, October 8 – 29 (come for one or all!)
6:00-8:00pm at Powderhorn Park – FREE!
3400 15th Avenue South
Preschool Halloween Party
Friday, October 30th
10:30-12:30am at Pearl Park - $2.00 per person
414 East Diamond Lake Road
Halloween Falls of Fun Halloween Event
Saturday, October 31st
2:00-4:00pm at Minnehaha Falls - $2.00 per person
4801 Minnehaha Avenue South