Studying wine grapes in their natural habitat is much more enjoyable than exploring the dank, melancholy caverns of root beer's namesake. Stroll through blissful vineyards with today's Groupon: for $9, you get one general-admission ticket to Grape Jam: Rock the Vineyards on August 13 at Hunt Country Vineyards in Branchport (an $18 value). Gates open at 3 p.m.

Celebrating 30 years of winemaking at Hunt Country Vineyard, Grape Jam fills patrons with flavorful local wines while live music billows across a panoramic view of the Keuka Lake Valley. Fresh off appearances at this year's Bonnaroo and New Orleans Jazz Fest, the Jamie McLean Band fortifies eardrums with rootsy rock 'n' roll and The Stick Mob and Blue Sky Mission Club pick out bluegrass sounds to an audience of dancers, toe-tappers, and vine elves. Meanwhile, visitors wander the lush, rolling vineyard grounds, fortified by either one complimentary glass of juice or one of Hunt Country's award-winning wines.

A portion of all ticket sales will be donated to The Committee to Preserve the Finger Lakes, helping protect the terroir that has helped win the winery's nectars such acclaim. Visitors should bring their own blankets, chairs, and umbrellas to use as sacrifices to the rain gods in case of inclement weather.