Diario de sea-kangaroo

I was thinking of going on a 1-2 night backpacking trip with some friends this weekend. We were originally going up the coast, which it turns out is forecast to be cold and rainy all weekend, so were looking at maybe Big Sur or Pinnacles or perhaps even Montana de Oro. Does anybody have any recommendations for other parks to look into, or particular routes that would be nice this time of year?