WASHINGTON, Dec. 8 (UPI) -- Parks where dogs can run around freely without a leash are a fast-growing add-on to city parks in the United States, a study by the Trust for Public Land shows.
The study found there were 569 off-leash dog parks in the 100 largest cities in 2010, which represents a 34 percent increase in the past five years, USA Today reported Thursday. The number of parks overall grew by only 3 percent in the same time.