Lighthouse is one of my favorite rides and if you are interested in the Century - there are two beautiful routes to select from. Not certain if the "hilly" route is more challenging than the "flat" route - lots of headwind on that flat route (done both like the hilly better). The SLOBC bike club knows how to put on a ride (their other the Wildflower is my all time favorite). The ride is quite scenic and goes up past the PB Lighthouse and then turns around and heads back down PCH - make sure you watch for all the Sea Elephants hanging out.

Also good place to stay - the Travelodge in SLO at 1825 Monterey Street. Great location and good price for rooms. Easy access and not far from the ride start.

With all the SLOBC rides, entry will sell out quickly. The WF sells out in a morning and Lighthouse usually in a day or so.