Perhaps you're not going on an extended vacation this summer and are only looking to take day trips. Some place within a few hours' drive of Windham? We've got you covered with books like
Doan, Daniel. 50 More Hikes in New Hampshire: Day Hikes and Backpacking Trips from Mount Monadnock to Mount Magalloway. [917.42 DOA]
Glassman-Jaffe, Marcia. Massachusetts: Hundreds of Ideas for Day Trips with the Kids. [917.44 GLA]
Hipple, Ethan. Outdoors with Kids Maine, New Hampshire, and Vermont: 75 of the Best Family Hiking, Camping, and Paddling Trips. [796.50974 HIP]
Olia, Maria T. Day Trips New England: Getaway Ideas for the Local Traveler. [917.404 OLI]
Rogers, Lura J. Fun with the Family in Vermont and New Hampshire: Hundreds of Ideas for Day Trips with the Kids. [917.4 ROG]
And, we have a Pinterest page titled Travel Close to Home, that has over 100 pins for locations or activities in the New England states, especially New Hampshire.
You'll find something for everyone from A (art museums) to Z (zoos) and a whole lot in between!