Namasthé Spa, Loi Suites Iguazú Hotel, Puerto Iguazú, Argentina
What: An upscale spa in a slickly decorated, wood-framed hotel brushed by the fronds of a toucan-filled jungle, with water circuits, saunas, and rooms for floor massages and couples treatments. A resident mixologist produces creams and oils from local ingredients.
The look: A scattering of generic Asian totemsBuddhas, rattan chairs, and Indonesian ebony furniture, with tubs, pools, and sandstone walls broken by giant buttresses of naked rock.
Who goes: Well-oiled Russians and jet-set Brazilian senhoras sporting furs, even in summer.
The treatment: The 50-minute body scrub with yerba maté, a fabled Argentine green tea grown nearby and unique to the area.
P.S.: Jaguars, ocelots, and vipers thrive in the surrounding jungle, but there's no verdant view from the spa (massages, $50-$72).