Ready for a fur-nomenal time? Fur-tastic time? Organizers promise it will be the “Ulti-Mutt day” for our fur friends. Whatever, it’s funny… and it’s time for you and doge to get out of the house. Let the dogs go nuts at the K9 splash zone and check out the 20 dog-friendly vendors at the Fido Marketplace, while Cull Hollow brings the live music. If you can’t make it for the Palooza part, you can sign up for a dog-friendly yoga class (with BendAndZenHotYoga.com) at 4 p.m.