Been there 4 times. the best advice is already been given... Well except for:
DONT GO OVER THE EDGE
3/4 times I have gone some dumbass that thinks he is a pro driver always goes over the edge.
Dont cross the yellow, but more importantly be prepaired for other cars/bikes to cross.
Dont think you can get going 75, like it was said I find 30-40 MPH is a good cruising speed. Start slow and get comfortable.
What ever you do, dont say anythign bad about bikes.. LOL Bad place to do that!!!
Be safe and have some fun!!
- Mike