Free Bowling at Interstate Lanes

I recently found out that Interstate Lanes on 35 in Round Rock has their own summer free bowling for kids program. Any school age kid K-12 can print off a bowling pass at their website and use it for 1 free game everyday. It says during "open bowling" and I couldn't tell for sure on the website when that is exactly so you would have to call and check. The best part is that shoe rental there is only $1.50 so this is definitely a better deal then driving down to that 300 place. The website is interstatelanes.net.