Reggae on the River aboard the Thomas Laighton Portsmouth, NH, United States · Isles of Shoals Steamship Company - Thomas Laighton Aug 01 , 2018 Time 7:30 pm Admission $15 Buy Tickets Venue Details Get Directions Address 315 Market Street, Portsmouth, NH 03801, United States islesofshoals.com/cruises For more information, view our Facebook event. Post navigation Next: 27th Annual FUDA FestPrevious: Amigos