Otherwise, the Mansion is open for tours Wed.-Sun. on the hour from 10am-3pm May-October. The Mansion is located waterside with beautiful grounds to explore (about a 1.5-mile round trip trail) and you can even have a picnic there.
The Wentworth-Coolidge Mansion is located at 375 Little Harbor Rd. in Portsmouth, NH. Their phone is (603) 436-6607 or you can email them at firstname.lastname@example.org or visit their website .