Is it just craziness there? How many people run this race?
Do a lot of people have their own t-shirts made? We were going to make ones that had our team name on it. Are there people cheering you on along the sidelines? What kind of apparel do people recommend wearing? Sleeveless shirts? What about sunglasses? I kind of think they might just get in the way. What type of celebration is at the end?
Hi Ashley!! Welcome!!
Don't worry, there are lots of us who have first time jitters.. i ran a 5k last year at WDW, but never did anything for this long of a distance..
As for how many people will be there, i am not sure what the "cap" is, but i know the race is 75% full,i am assuming there will be a couple thousand easy.. Since it is their first princess 1/2, who knows.. LOL
As for the end celebration - again, who knows. At the Minnie last may, there were characters at the end to take pics with (although, there was NO WAY i was getting in line dripping with sweat to take my pic!!)

I am guessing the princesses will be there at the end..
As for clothes, you will get a million answers. I have a WISH board shirt that i like to wear, (which is the signature WISH lime green) and i will probably be wearing my pink running skirt.
I am sure you will have LOTS wearing matching team shirts, and even some in princess costumes..
I cut the sleeves off my shirt, and will end up tying them up with princess ribbon i found.

I am not going to wear sunglasses i don't think.. i think they would end up driving me crazy as they would slide down my sweaty nose.. LOL
My sis did wear hers for the 15k last year, but she had to carry them for a bit in the beginning b/c it is still dark out when we start..