From Morro Bay: Take Hiway 1 south until it dumps you into SLO- just stay on it until you get to the fourth intersection after you get into town- There's a taco bell and a burger king on the righthand corners... I want to say it is Olive, but I'm not certain. Take a right there and follow it to get on the 101 freeway south. Take San Luis Bay Drive exit, make a right, then a very immediate left onto Ontario road (not sure if there is signage saying that or not?). Ontario is the frontage road next to the freeway. The PG&E community center is on the right. I believe there is signage for that? Diablo used to have a visitor's center onsite along with a bio-lab and aquarium set up... but that all went away with the terrorist concerns. Which is too bad, it was actually pretty cool! I'm actually in a class tonight... and I didn't get this last night- Sorry! I hope your visit here is nice and you like SLO and Morro Bay! Sande