There's nothing like a Piña Colada to transport us (at least in our minds) to azure waves fringed by white sand. In our fantasy, this island is deserted, save a hammock and handsome sea captain. Unfortunately, the whopping 625 to 645 calories in a Piña Colada's single serving brings us right back to reality. In addition to equal parts light rum, coconut milk and crushed pineapple, most Piña Coladas are made with a sugary pre-mixed syrup concoction. Just think, we could've splurged on a Big Mac for only 540 calories.