TT -

Rising Sun is far superior to camping at St. Mary which is a Walmart parking lot.
Rising Sun has a small camp store, a cafe, and a shower house.
You can walk across the road to the lake.
And it puts you in a great spot to start super early for the climb.
I can guarantee you that to start a sunrise makes for a great ride.
You can enjoy the views over Wild Goose Island without the hordes of tourists.
And the early morning light on the cliff faces is sublime.