Historic Portsmouth Extended Walking Tour Twice a Month at 2:30 pm Third and fourth Wednesdays of the month Stretch your legs on our longest walking tour! This two-hour tour includes all the highlights of the daily Historic Portsmouth tour and brings visitors to Prescott Park and the waterfront. Walking Tour Rates: Tours are $15 for members, $20 for non-members, $15 for discounted groups (Children 5-18, Seniors 62+, Students, Portsmouth Residents), and free for children 5 and under. All tours depart from Portsmouth Historical Society, 10 Middle Street, Portsmouth NH. Online reservations close 30 minutes prior to tour departure. Please call (603) 436-8433 for last minute bookings. Upgrade your ticket for just $5 to also visit our galleries and John Paul Jones House.