Hi Patrick!
Congratulations on your October plans for a Walt Disney World vacation! You'll all have such a blast together! At Walt Disney World, there are plenty of great activities that are perfectly suited for groups, even outside the Parks and attractions themselves.
Disney's Family Magic Tour takes place in Magic Kingdom Park and is about 90-120 minutes long. This interactive quest around the park is great fun for all ages and includes a surprise Character Meet and Greet at its conclusion.
There are several great ways to either start your vacation off with a 'bang' (literally!) or have a great Grand Finale to your trip; all while enjoying the pure magic of the Wishes Nighttime Spectacular fireworks together.
These events are capable of handling larger groups well. Be sure to reserve as far in advance as possible to ensure accommodation for your group. Advance payment is required at the time of booking.
Finally, a great, casual atmosphere to arrange a group meal to please all ages and tastes is
Via Napoli in Epcot. The kids will love the giant 'mouths' which are the pizza ovens. My family has enjoyed many, fabulous meals with groups at this location and I highly recommend it.
I hope you'll enjoy investigating some of my favourite recommendations for larger groups at Walt Disney World. Feel free to visit again with more great questions!
Wishing you a simply Magical time as you plan your Walt Disney World vacation Patrick!
Kirsten