Most metro-area indoor rec centers struggle to decide what they are. A splash area for kids? A workout pool for adults? As a result, many end up inadequate. Not Wheat Ridge Recreation Center. One side of this massive complex boasts a 120-foot water slide, fountains, a lazy river (free flotation devices available) and an outdoor patio for summer. On the other side, separated by a glass wall, is an eight-lane, 25-yard pool large enough to accommodate anything from a gaggle of geriatric breast-strokers to an entire competitive swimming meet. For the more daring, the adult side also has a springy one-meter diving board where grownups can practice their very mature cannonballs.