Polar Caves is the other boulder-cave attraction near Lincoln — a talus slope of granite blocks that tumbled off Hawk's Cliff in Rumney at the end of the last ice age, leaving nine walk-through 'caves' in the gaps, linked by boardwalks and stairs. It has been a roadside stop on Route 25 since the 1920s, about 35 min south of the lodge, and it is the gentler cousin of Lost River Gorge.
It is also more of a family park than a scramble — a petting area with fallow deer and ducks, a maple-sugar exhibit, a rock-mining sluice, gift shop and snack bar surround the caves. Adults staying with us who have done Lost River sometimes ask if Polar Caves is worth the extra drive; here is the comparison.
The caves themselves
The walk is a loop of boardwalks and stairs up the talus slope and back, with the nine named caves as side trips — some are easy walk-throughs, a couple involve real squeezes, and every one has a bypass. Cool air pours out of the deeper gaps even in August (the 'polar' in the name), and the granite geology is well-explained on the signage.
It is less strenuous than Lost River — fewer stairs, less vertical, more boardwalk — which is a plus for tired legs and a minus for anyone chasing the scramble. Figure an hour to an hour and a half at an unhurried pace, longer with the animals and exhibits.
Season, hours, prices
The park runs daily 9 to 6 from mid-June through Labor Day weekend, then Wednesday to Sunday through mid-October — closed for the winter. Online tickets ran about $24.50 adult, $21.50 seniors, and $15.50 youth 4 to 11 in 2024, and buying ahead online gets the best price and guaranteed entry, so check polarcaves.com for 2026 prices before you go.
Foliage-season Wednesdays and Thursdays are the quiet version; summer weekend middays are the family rush.
Polar Caves versus Lost River
If you are choosing one: Lost River is closer (12 min versus 35 min), more dramatic (a real gorge, a river, bigger squeezes), and more of a workout. Polar Caves is easier on the knees, more built-out for small kids, and sits on the way to or from Plymouth and the Lakes Region rather than in the notch.
For an adults-only lodge's guests, Lost River wins most of the time. Polar Caves earns the drive if you are heading south anyway — to Squam Lake, say — or want a second cave day that asks less of the legs.
Making a day of it
Rumney sits on Route 25 west of Plymouth, in the Baker River valley — a pretty, quiet corner. Pair the caves with a Plymouth lunch, or continue east to Squam Lake and the Natural Science Center for a full non-mountain day, and come home up I-93 to the notch.
Where to stay for it
About 35 min south of the lodge — I-93 to Plymouth, then Route 25 west. It pairs naturally with a Squam Lake day; for the cave experience alone, Lost River is closer and more dramatic.
Sources & official info: polarcaves.com · polarcaves.com · visitwhitemountains.com
— Launchpoint Lodge, From the lodge
