welcome Trex, be warned you will get hooked.
I did my first on June and I ran all of it, but at the slowest possible pace, and it took me 42 minutes, so you will be fine at your speed.
I was so embarrassed being so slow, but everyone was so lovely and supportive and encouraging, so I came back!
Last week we had a dad and his daughter running.
She wore a shirt with a big arrow pointing at her dad 100 parkruns today
He wore a shirt with a big arrow pointing at her saying 1st park run today. They went round very slowly, at her pace and everyone who went past made a nice comment to them, it was fab.
There was also a runner in trekking sandals, but very battered and well worn, not much more than barefoot. Our course is very gravelly, it must be very painful to run.
I ran 10 km yesterday, first time ever, feeling very smug, but also feeling very achy, dh has warned me not to expect a pb tomorrow, I will be lucky to get a good time. So now of course I really want to prove him wrong!