Will the splash pad be open on Monday July 23rd?

I'm sure it will be but I would call to make sure.

H-E-B SPLASH PARK HOURS May 26 - September 2 (Labor Day) Open daily 10 a.m. – 6 p.m.

Yes the slash pad will be open on July 23 2018. Make sure to bring plenty of sunscreen and a towel and if you have a child in diapers bring a waterproof diaper.

I think it runs every day