Just a few dozen metres from the heart of Enterprise, the earth falls away and a gaping chasm yawns. This is the Twin Falls Gorge, where sheer limestone walls glitter like shimmering sand, while the rim is lined with a dark wall of evergreens. Hundreds of feet below, the honey-coloured Hay River slides north on its urgent journey to Great Slave Lake. A walking path links the overlook here with the rest of Twin Falls Gorge Territorial Park.