Best Bet: Twinkle Toes

Tribeca Beauty Spa.

Trekking around in flip-flops leaves heels hard, dirty, and calloused in the most reptilian way. Thankfully, the team over at Tribeca Beauty Spa offers the Crystal Bubble Pedicure to whip even the crustiest of feet into shape. Feet aren't soaked in water; instead they're dipped in a Crystal Mud Foot Bath, which, when activated by water, turns into a lumpy light-pink jelly. It feels like you're soaking in a tub of tapioca pudding or grits, and it's used as a stress reliever, muscle relaxer, and detoxifier. But the weird jelly soak is just part of the pampering. Feet are massaged, scrubbed, buffed, filed, and polished to absolute perfection, and your pedicure lasts for weeks on end.

$75 for 60 minutes, at 8 Harrison St., nr. Hudson St.; 212-343-2376.