Bay seniors know that when summer starts to heat up they can find cool comfort in paradisical West Marin. You should hurry though, before the foodies arrive en masse and it becomes the coastal equivalent of Yountville. Savor the moment, the oysters, the cheeses, the wines on West Marin Farm and Food Tours. They include locavore picnics along serene Tomales Bay. Limited to seven participants. Thursdays through Sundays. 10:30 to 3:30. $134 per person.