Japanese Gulch Park is a City of Mukilteo park located in Washington State. It has a hilly set of local trails and hosts an off leash dog area to run your dogs.
Park in the small 15 car lot on the south side of Mukilteo Blvd.
You can go up the trail behind the kiosk there or walk a 100 yards east and ascend along the railroad track access road. Stay away from the railroad track for safety.