My H and I will be visiting young-adult kids in SF in April, and want to take them away for a 3-day weekend of interesting walks and views. Since we (the parents) have just survived a cold east coast winter, we long for warmth and sun and a beach to walk on. We'd like to drive as little as possible, both from SF to get to the weekend destination, and during the weekend itself. And we don't want to spend a fortune (max $300 per night). Where should we go? And where should we stay? We will need 3 sleeping rooms, and a fridge, as we're bringing our own food. Rustic cabins, hostels, bare-bones motels are fine as long as they're in a great setting or walking distance to one.