The pavilion is sometimes rented out, so look for the group with a red banner, foam weapons, and brightly colored tunics at or near it.
We meet every Saturday afternoon and play almost until dark, weather permitting. Though there are sometimes themed weekends and events, a usual park day will include some individual sparring, instruction for new players, ditching (informal, fast-paced, two-team combat using only militia weapons), and a battle game using class abilities and magic.
There's often a group of non-fighters to socialize with, and we plan to offer some weapons construction and art workshops throughout the year.
All you need to bring for your first time is water and sunblock. We'll have some loaner weapons and plenty of answers for all your questions. Feel free to just come watch or to get as involved as you like.
Our Facebook page: https://www.facebook.com/groups/497467123609683/?fref=ts
More about Bright Forge here: http://www.amtgard-bf.com/Home_Page.html
Under 18 will need a parent-signed waiver: http://www.amtgard-eh.com/library/waiver.html
The Kingdom of the Emerald Hills, encompassing all North Texas chapters, is 25 years old and has hundreds of active players who regularly come out, though only a handful of them are on Meetup at all. I will notify this group of any cancellations. Otherwise there are always players in attendance each weekend. You might find more online activity on the Facebook page.