Portsmouth is a city in Rockingham County, New Hampshire, United States. At the 2020 census it had a population of 21,956. A historic seaport and popular summer tourist destination on the Piscataqua River bordering the state of Maine, Portsmouth was formerly the home of the Strategic Air Command's Pease Air Force Base, since converted to Portsmouth International Airport at Pease.
AdThe Best Portsmouth, New HampshireTours and Things to Do in 2025 - Free Cancellation. Convenient and flexible cancellation up to 24 hours before your tour — no questions asked.
Over 60,000 activities · 24/7 customer service · Best value guarantee
AdFull refund available up to 24 Hours before your tour date. Quick & easy purchase process. Find the best tours in Portsmouth. Compare prices and book online on Tripadvisor.
Guaranteed Low Price · Candid Traveller Photos · Book with Confidence · Secure Payments
Service catalog: Online Tour Booking, Read Traveller Reviews, Compare Tour Products