Ride around Mt Rainier Park

Just for info, we will be attending a memorial ride for one of our pastors who died while riding his bike a few months ago. The ride will be on July 24 for a ride around Mt Rainier Park. We are not sure how many riders will be attending, This is open to anyone. My wife and I will be attending with our sidecar rig and more rigs would be welcome.
My wife will have one leg in a cast, but we have figured out how she can get in & out of the sidecar wearing a boot cast on one leg and carrying the crutches on the side of the sidecar.
For more info, here is a link:
http://www.thomcarlsonmemorialride.com/