CoCo Key, where it’s always a sunny 84 degrees, combines the relaxation of a tropical paradise with the excitement of 55,000 square-feet of indoor water park: water slides; dip-in theatre; an adventure river; indoor and outdoor spa; interactive play-island; lounge; private poolside cabanas; arcade and family restaurants.Day passes and overnight packages are available. Located at the Adam’s Mark Hotel, off I-70 across from the Truman Sports Complex, home of the Kansas City Chiefs and K.C. Royals.