[Easy] What is this?

Saw this in the Guelph arboretum. I’m sure there’s a simple answer, but we couldn’t figure it out.

It’s a ‘hole’ for frisbee golf. We have a league here in southeast Ohio (no kidding) and one of the private nature parks has a set of links.

Linkety link

The Disk Golf Association

Thanks very much!

Well, I’d say in the first pic, what you have there is a very attractive girl.

…What?