Every day, Andrea Cunningham drives Grover, her 3-year-old wirehaired pointing griffon, four miles roundtrip to Fuller Dog Park in northeast Denver — even though she lives just blocks from Cheesman Park. She makes the trek to avoid getting ticketed for an unleashed dog, but she hopes Denver will expand its offerings of dog-friendly outdoor spaces. “I drive four miles a day just to walk my dog, and I would be really happy to walk five blocks a day instead,” said Cunningham, 59. Denver has doubled its number of dog parks in the last decade, but that hasn’t satisfied demand yet.