New research shows that a 55 minute walk in the park sharpens cognitive function — especially attention. It's not just the exercise (a city walk had a much smaller effect). Even looking at pictures of nature for ten minutes gives the brain a boost.

Give your urban child some outdoor time with this gift certificate for $100 off a week of Urban Kid Adventurers' summer Adventure School! He or she will learn primitive skills like fire by friction, basketry, tracking, and forage for berries!