Polar Seltzer dropped another flavor you can only find at 1 store. Here’s what it’s like

Polar Seltzer quietly released a new flavor this year. But there’s a good chance you missed it, unless you happen to shop at Roche Bros.

That’s the only place where you’ll be able to find Watermelon Wonder, the latest entry into Polar’s “Expedition: Flavor” series . Or as I like to call them: the secret seltzers .

The series is a fun concept that turns the quest for zero-calorie beverages into a treasure hunt. Most Expedition: Flavor entries are store exclusives. Although Polar did launch a regional exclusive earlier this summer that is only available in the American Southwest.

Polar Seltzer Watermelon Wonder | Expedition: Flavor

Watermelon Wonder marks the seventh seltzer flavor that is a store-exclusive. Of the seven on the market now, customers can find five in Massachusetts an