Fishing and hunting. Honor what you kill, it gives you life.
Though anyone can join at the lower ranks the higher ranks are saved for the best of the best. Every 5 years there is a grand hunt to help pick the top hunters and fishers. With each common animal and fish type having its own category.
Meetings are often for the great hunt or smaller meetings where people share tail of the fish they caught or the game they hunted. Often gatherings happen as hunting parties or fishing friends. There is the occasional local meeting to share ideas and tips.
Buy a hunting permit for the land you wil be hunting in, this only last a year. This gives you the legal right to hunt in the aria. They also have the right to restrict the number of members. Members of the prior year normally have first grabs if there are limited openings.
The society is ran by shamans (druids) who try to keep hunting around major populated areas controlled. In more rual areas this is not an issue. In most empires they have permission from the leadership to keep track and run the hunting rights.