Your post states the former - but you then speak about Winter shooting? :confused:
George, sorry. I mean October through Feburary. A short time but well worth it. I'm not far away so bad days are not a problem for me.
A LOT more from Guadalupe than from Oceano (far fewer 4x4s). I lived in Guadalupe for 5 years and my late father-in-law used to guard the gate to the dunes there in his early 80s (he never quite got the hang of retiring).
I found the dunes astonishingly hard to photograph. The canyons a few miles inland were easier but still difficult. Don't miss San Luis Obispo.
Your father-in-law must have turned me away a bunch of times because my car was 4 wheel drive even though was just going to take pictures or surf. I also had troubles when I was hired by Patagonia to document the Unocal diluent spill (petrolium thinner) in the Guadalupe Dunes that was covered up for years. I remember having to borrow a car to get out there.