Discover how U.S. city retreats blend spa services, yoga classes and urban forest-bathing escapes for deep rejuvenation.

The idea of “forest bathing” sounds appealing in the summer, but how about in winter? It might be just what you need to “chill out” and recharge yourself in these overcharged, stressful winter days.

The U.S. offers countless opportunities to see the colors of fall, yet the most stunning of them all may just lie in the ...