[Tagging] tag for big training area and attendent

[fly]

Hi

I have several big trainings areas with several pitch and a Stadium.
Everything is tagged nice, but I need two more tags:

1. I need a tag for the whole area under leisure. (do not know a nice
english word so far)

2. I need some tag for building= to tag the stands/tribune and maybe
diversify between seated and unseated.

Can someone help me finding good tags.

Thanks fly