Let's do a fun ride from the city to Biketoberfest in Fairfax, via the Marin Headlands + Mt Tam. The festivities start at 11am, so leaving around 9am will give us a few hours for an easy pace ride there, planning to arrive by noonish. Hang out at the festival for a couple hours, grab lunch and beers and check out the booths, then head back to the city. Around 48 miles round trip.
There will be some sustained climbing, up Conzelman to the Coastal Trail, and up Miwok. Then it's Tennesse Valley down to Tam Junction, and down into Fairfax via the Sausalito Bike Path, Camino Alto, etc. ~60/40 roads and easy trails; good for beginners. We'll happily wait and regroup at the top of all the longer climbs. I'll map out an exact route with mileage and elevation details in a few days, but here's the general route idea: http://goo.gl/RnGBdf
If we want a larger mix of trails the distance and elevation go way up -- maybe we can do that on the way there, then stick to more direct roads on the way back? I'm open to suggestions.
Admission to the event is FREE; the beer tents are CASH ONLY, and don't forget your ID! More details: http://www.biketoberfestmarin.com