Is there anything to do there during the day 2mroww with family

You can also let the kids run thur the water

Roller rink,

I am sure there is, check the discovery green website.

Yes, roller rink

Yes

Yes. Since the beginning of March there has been Houston’s First Outdoor Roller Rink; Rolling at Discovery Green! The roller rink will be open March 2- April 1, 2018 and includes fun programming such as Top 40, 80's and 90's themed nights! Weather permitting this should go as planned.

Not sure🤔