Outdoor adventurers face innumerable challenges, from misplaced trail markers to white-picketed subdivisions disguised as rugged mountains. Prepare for the wily wilds with today's Groupon: for $20, you get $40 worth of outdoors apparel and gear at US Outdoor Store. This Groupon expires in two months.

For more than 50 years, the outdoors aficionados at US Outdoor Store have equipped intrepid customers with a vast array of gear and apparel for snowboarding, surfing, mountaineering, and a host of other adrenaline-fueled endeavors. Don a pair of navy blue Reef board shorts ($38) for wading waves or wrestling lawn sprinklers. The durable Mountain Hardware raffia crusher hat ($40) can be stuffed away into beach bags for impromptu sun-soaked jaunts, and children's Northface rain jackets ($32) shield young adventurers from Mother Nature's aerial bombardment. Sheathe leg-ends of all ages and grape-stomping abilities by applying your Groupon toward footwear cobbler-made for the tasks at foot. Additionally, surf gear such as durable O'Neill gloves ($34.95) and surf booties ($37.50) boost aquaphiles' splash skills, and camping gear facilitates relaxing reprieves from home poltergeists.