Hi, Amy!
I hope you are getting excited for the inaugural Star Wars Half Marathon Weekend! I'm sure this race will be out-of-this-world!
The Wookiee Welcome Party is a great way to add a little magic to your weekend, I am glad to hear you are attending!
Unfortunately, the shops along Main Street USA will not be open for guests attending this exclusive event. Upon entering Disneyland Park, you will be directed to Tomorrowland so you may begin the galactic fun. If you are needing to make a pre-party purchase,
World of Disney in the Downtown Disney District should have most anything you need.
Hope this helps, Amy! See you in Disneyland!
May the course be with you,
Faith