I do think the photo station could also be eligible. Perhaps you can persuade them to put up a nature sign that explains stuff about the restoration project and the kinds of flora and fauna that can be found in the area?
Did anyone link this yet?
I think I wouldn’t nominate this simply as a park since it doesn’t look like a stereotypical park, it’s a wetland area that is meant for outdoor recreation. I would use the web submit with loads of photos that prove this is a dedicated space for outdoor recreation and you should be fine