For a memorable weekend in Northern California you can visit a six-acre hillside blanketed with 4,000 daffodils take a stagecoach ride or pan for gold in an old mining town enjoy the pie-eating contest and other entertainment at a pumpkin festival celebrate a Victorian Christmas at a cozy landmark inn.  Or you can hike, sail, museum-hop, tour the wine country, go whale watching, or relax at a well-known spa. Eleanor Berman offers hundreds of ideas for year-round fun in exciting itineraries--stretching from the roller-coaster streets of San Francisco to the crashing surf of Big Sur, from the grandeur of ancient redwood forests to the crystal-clear waters of Lake Tahoe. All itineraries are within easy reach of the Bay Area and/or Sacramento, and each includes travel directions and suggestions for accommodations and restaurants to suit every budget. You'll also find area maps, and activities especially appealing to children are noted.