Who let the dogs in? Hydrant Club - Downtown Las Vegas' social club for urban canines and the people who love them. Pups can romp in the private outdoor dog park or escape the elements in the indoor climate controlled playroom. Full service daycare, sleepover parties and for studious pups, a great training academy. Also not to be missed at 109 N 9th Street - the world's largest - working - yellow hydrant!