- $12 for four Groupons, each good for $5 worth of frozen yogurt ($20 value)
Fro Yogurt Castle
It's hard not to feel immediately cheered upon entering Fro Yogurt Castle, a place where self-serve frozen-yogurt machines are embedded into lime-green and pink walls. After filling their cups with yogurt or dairy-free sorbets, customers head to the fresh toppings bar to add sprinkles, chocolate syrup, gummies, blueberries, and many other finishing touches. For a change of pace, Fro Yogurt Castle serves lassi yogurt drinks and frozen-yogurt milkshakes, too.