Best getaway: Post Ranch Inn (from $550; postranchinn.com)

Why it's green: Not a single tree was uprooted during the building of this retreat. You'll appreciate the ecological qualities throughout, from reclaimed redwoods used as siding to hot tubs carved from granite.

Why it's great: Every room in this hotel has huge windows, a fireplace, a spa tub, and a deck overlooking either the ocean or the mountains. Consider a session with the resident shaman, who'll channel the forces of nature to help you become a stronger couple.