Mombo in Portsmouth, NH 66 Marcy Street Portsmouth, NH 03801 603-433-2340 At Strawbery Banke in front of Prescott Park Map of 66 Marcy Street, Portsmouth, NH 03801 Guest Parking Lot On-Site. Please note that our lot has a set capacity and does fill up especially on weekends. As such, we cannot guarantee availablity, however alternate parking may found at Portsmouth’s High-Hanover Parking Garage at 34 Hanover Street when needed. Make a Reservation