If you do choose to visit any of these places, please Leave No Trace! Not only do you need to make sure to remove all your own trash, but we ask that you try to pick up any trash left by others. There have been dozens of swimming holes closed off to the general public over the last 20 years due to disrespectful visitors. These swimming holes are some of the most wonderful places in all of New England.
If you are passing through the area, this is a nice sight to stop and see. The well-carved gorge is quite impressive. This geological wonder is another New Hampshire attraction that is believed to have been formed by a retreated glacier from the great Ice Age, about 10,000 years ago. Swimming is a locally popular activity at this spot in the summer, but it is only safe in low-water conditions. You might spot people jumping off the gorge walls for a bit of adventure. Others may be enjoying some of the water-filled potholes alongside the river. Swimming can be dangerous here; if the water level looks too high, avoid the temptation, especially within the gorge.
Sculptured Rocks Natural Area, which spans 272 acres, is a unique example of nature's powerful yet delicate artistry. The Cockermouth River carved a narrow canyon in bedrock on its way to Newfound Lake, beginning as the last ice age drew to a close. Nature used grains of sand suspended in the current to carve the walls of the canyon into curious shapes and create potholes in the bedrock.
New Hampshire is home to 51 "official" swimming holes, according to swimmingholes.org, an online resource for your quest. And yes there is an app for that! Visit the swimmingholes.org site to download an Android app and mobile browser that points you to choice spots all over the US.
by Bruce, Doreen and Daniel Bolnick is a great resource. 