mountainous/ coastal /lake route combined with excellent climbs and descents. water at pantoll/bootjack/mtn home. suncreen and layers 

mtn views, ocean views, redwoods...a classic ride minus the town riding...this out and back give you both a great climbing ride and a very different ride in either direction. 

this is one one my favorite rides there is water at the mtn home inn and at pantoll campping area. Ride this and feel great!

North End, Marin Bike Path to Top of Camino Alto

20ish mile route on Mt. Tam.  Starts at Muir Beach Overlook and works its way up to the top of Tam, and then back down.  Great views (when it isn't foggy).

distance: 3.927 miles
start: 22'
end: 718'
net gain: 696'
gradient: 3.4%