Calgary has 16 designated off-leash dog parks, 3 of which are in Hillhurst-Sunnyside (if you count Rotary park on the East side of Centre Street and Crescent Heights Park). As well, Hillhurst, West Hillhurst and Sunnyside are home to over 1200 dogs, and countless dog-friendly businesses.
Just remember to be a good neighbour and pick up your poop!