Even though the temperature may hit 90 on Wednesday, you can stay cool on 7-Eleven Day.

On July 11, from 11 a.m. to 7 p.m. (note the time swap), more than 8,000 7-Eleven locations across the country will be giving out free 7.11-oz. Slurpees for its 85th birthday celebration.

But get there early—the Slurpees are only available as supplies last and several locations run out of special 7-Eleven Day cups by midday.

If you miss out on the free Slurpees, you can munch on a birthday donut, according to the store’s website.

The rewards don’t stop there though—you can get two free rewards points on every free cup Wednesday. Slurpee Nation rewards can get you Slurpee iPhone wallpaper, computer backgrounds and ringtones.

And for those who want to take 7-Eleven Day to the extreme, you can go to Six Flags Great Adventure for only $7.11 on July 11 after 7:11 p.m. All you need to do is show your 7-Eleven receipt from July 11 and check in after the appropriate time.

Then, you can get a coupon for $7.11 admission and a wristband for an extra hour of ride time during the 7-Eleven exclusive Coasters After Dark Event.

If you’re already planning on being at Six Flags Great Adventure Wednesday, buy a Slurpee at the park after 7:11 p.m. Wednesday and you can still get the wristband.

A 7-Eleven Day app is available through timeRAZOR and will map out participating convenience stories where you can get your free Slurpee.

To RSVP to 7-Eleven Day on Facebook, click here.

Moorestown are located at 310 Chester Avenue and 1 Camden Avenue.