Wartook Reservoir is an excellent place to take a break from the fast pace of everyday life. See if any water activities are on offer here, or just enjoy the calm ambiance.
When you've finished up at this body of water in Zumsteins, why not check out McKenzies Falls, The Pinnacle, and Mackenzie Falls Lookout Trailhead? They're close to Wartook Reservoir and also popular with many tourists.