Hey there! 
Yes, u'r right in saying that there r equipments (like an open gym and a skatepark) here. I did edit these points to reflect these details yesterday I believe. I was updating stuff using Organic maps, which unfortunately does not seem to have options to add details like these. I went home and updated from the website. 

I have started using "OSM Go" though, which has features similar to the website for adding details.

Cheers!
Priyavrat 