Highwater Trailhead Parking
Hiking area
State Rte 113, Gilead, ME 04217

Background: generated illustration, not a photograph of this location.
Guide to Rattlesnake Pool and Emerald Pool on the Cold River in Western Maine. Find directions, safety tips, and seasonal info for these unofficial swimming spots.
Location
This is a desk-researched listing. A record update or map check does not confirm current swimming permission or water conditions.
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Tucked into the forested hills of Western Maine, near the quiet towns of Bethel and Gilead, the Cold River swimming holes are the kind of places you stumble upon and never quite forget. Carved over millennia by mountain brooks tumbling through granite and glacial debris, these natural pools sit within a landscape of towering conifers, moss-draped boulders, and the kind of deep, cathedral silence that only old-growth forest can produce. This is swimming in its most elemental form — no ropes, no lifeguards, no concession stands — just cold, clear water and the sound of moving current.
The two crown jewels of this stretch are Rattlesnake Pool and Emerald Pool, each with its own distinct personality. Rattlesnake Pool earns its reputation through color alone — the water holds a naturally emerald hue that seems almost impossible, the result of light filtering through dense forest canopy and refracting off pale, smooth riverbed stone. Emerald Pool, downstream and slightly more dramatic, rewards bolder visitors with high jumping rocks that draw a loyal following of thrill-seekers every summer. Both pools are surrounded by dense woodland that enhances the sense of seclusion, and the gorges and small waterfalls feeding each pool create a backdrop that photographers and painters return to season after season. Wildlife is abundant — keep your eyes open for songbirds, white-tailed deer, and the occasional great blue heron picking its way along the shallows.
The Cold River lives up to its name. Even on the warmest August afternoon, the water carries a bracing chill that makes the initial plunge feel electric — and the relief from summer heat all the more satisfying. Clarity is excellent; you can watch sunlight ripple across the rocky bottom in the shallower sections, while the deeper pools at Emerald Pool are dark and inviting for those confident enough to jump from the surrounding ledges. Swimming here requires a sense of adventure and self-sufficiency. There are no facilities of any kind on site, so you'll want to arrive prepared with water, snacks, and a first-aid kit. The hikes to reach each pool are moderate — roughly half a mile to three-quarters of a mile on marked trails with varied terrain — making them accessible to most reasonably fit visitors while still feeling genuinely earned.
The sweet spot for a visit runs from late May through September, when warm weather makes the cold water feel like a reward rather than a shock. Autumn visits offer something different entirely: the surrounding hardwoods ignite in reds and golds, and the crowds thin considerably. Two developed campgrounds along Route 113 put you within easy reach of the swimming holes if you want to make a weekend of it. The nearest services and accommodations are in Bethel, a charming Western Maine town with dining, lodging, and outfitter shops, while Gilead sits just to the north and serves as the quieter gateway into this stretch of river country. Admission is free. Come early on summer weekends to claim your spot on the rocks before the pools fill with fellow admirers of these remarkable, emerald-tinged waters.
If you are planning a longer day in the area, it pays to line up a few options. Within reach you will also find Weston'S Beach (about 18 miles away), Route 25 Maine River Swimming Holes (about 31 miles away), and Rumford Maine Swimming Holes (about 33 miles away). To plan further, browse more Maine swimming holes, compare other river swimming holes, or read about what to pack for wild swimming.
Directions to Cold River Swimming Holes of Western Maine
Driving Directions:
Trail Directions:
Helpful Notes: - Bathing suits are customary when families are present but optional at other times. - The most secluded swimming spots are the two pools near the falls. - GPS Coordinates: Latitude 44.2561, Longitude -70.9758 - Google Maps Link: 44.2561, -70.9758
Driving Directions:
Trail Directions:
Helpful Notes: - The pool is quite deep, about 12 feet in the middle, and features rocks on both sides that allow jumps ranging from 6 inches to 12 feet. - Bathing suits are customary when families are present but optional at other times. A smaller pool above the falls is traditionally used when families are below. - Emerald Pool can be crowded during summer youth camp season, so the upper pool may be a quieter option. - GPS Coordinates: Latitude 44.23753, Longitude -71.0286 - Google Maps Link: 44.23753, -71.0286
Enjoy your visit to the Cold River Swimming Holes! Always practice Leave No Trace principles and respect the natural environment.
These are unofficial, natural swimming holes with no facilities, fees, or lifeguards. Parking is at trailheads; access requires a hike. Water conditions like depth and current vary seasonally. Respect private property and follow all posted signage.
Confirm the entrance, parking arrangements, and legal access with the land manager. A map pin does not establish a public right of access. Follow posted routes and never block gates or driveways.
Current swimming permission has not been independently confirmed for this listing. Check official rules, fees, hours, and closures before visiting. Public park access does not necessarily include permission to swim. Respect private property and posted restrictions.
Water conditions can change quickly. This listing does not provide a current safety or water-quality assessment. Check official alerts and avoid entering water when conditions or permission are uncertain.
Bring sturdy water shoes to protect your feet on rocks and slippery surfaces. A waterproof dry bag keeps your phone, keys, and valuables safe. Pack a quick-dry towel, sun protection, and drinking water - never drink from the natural water source.
Nearby places from saved public map data, not necessarily facilities at the swimming spot. Confirm access, hours, fees, and amenities with the operator before you drive.
Map data retrieved 2026-06-15
Hiking area
State Rte 113, Gilead, ME 04217
State park
Newry, ME 04261
Expansive, scenic park, with cross-country skiing & hiking trails, plus hunting & fishing.
Nature preserve
1657 Bear River Rd, Newry, ME 04261
Tourist attraction
Sunday River Rd, Newry, ME 04261
Campground
800 W Bethel Rd, West Bethel, ME 04286
Canoe & kayak rental service
121 Mayville Rd, Bethel, ME 04217
Campground
Bethel, ME 04217
Public bathroom
Japan, 〒194-0215 Tokyo, Machida, Oyamagaoka, 4 Chome 小学校前(バス
Checking nearby USGS water conditions…
This listing reports no entry fee. Confirm current parking charges, permits, and day-use fees with the land manager before visiting.
Current swimming permission has not been independently confirmed for Cold River Swimming Holes Of Western Maine. Public park access does not necessarily include permission to swim. Check with the land manager and follow posted restrictions.
Cold River Swimming Holes Of Western Maine is a river on Varies-See Below located in Maine, near Bethel. Guide to Rattlesnake Pool and Emerald Pool on the Cold River in Western Maine. Find directions, safety tips, and seasonal info for these unofficial swimming spots.
Seasonal planning notes: Late spring through early fall (May to September) offers optimal conditions with warmer weather and clearer trails. Autumn visits showcase vibrant foliage. Water levels, clarity, and temperature vary with recent weather. Check current conditions before going, especially after rain or snowmelt.
Reported facilities at Cold River Swimming Holes Of Western Maine include: No facilities directly at the swimming holes; visitors should bring essential supplies. Developed campgrounds are available nearby along Route 113. Amenities can change - contact the managing agency or check recent visitor reports to confirm current availability.
Two developed campgrounds along RT 113.
Bethel and Gilead’s historical roots date back to the 19th century, with Gilead named for its Balm of Gilead trees. The Cold River Area reflects Maine’s rugged and unspoiled wilderness.
Capture cascading waterfalls, emerald waters, and forested landscapes. Best lighting occurs during early morning and late afternoon.
Visitors should adhere to Leave No Trace principles by carrying out trash, avoiding wildlife disturbance, and preserving the area’s natural features.
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Use this safety guide before entering any natural water.
Safety & Access Notice
This information is for general planning only and may be incomplete, outdated, or inaccurate. Access rules, closures, water levels, currents, hazards, and legal restrictions can change at any time. Always verify current rules with the land manager or official source before visiting.
You are responsible for your own safety and for following all posted signs, laws, and local regulations. Read the full disclaimer.
Two developed campgrounds along RT 113.
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Safety & Access Notice
This information is for general planning only and may be incomplete, outdated, or inaccurate. Access rules, closures, water levels, currents, hazards, and legal restrictions can change at any time. Always verify current rules with the land manager or official source before visiting.
You are responsible for your own safety and for following all posted signs, laws, and local regulations. Read the full disclaimer.
Joshua Havens created Hidden Swimming Holes to make it easier for people to find — and safely visit — natural freshwater swimming destinations across the United States. He researches access conditions, water quality resources, and land management rules so you don't have to start from scratch. He holds a strong belief that good outdoor recreation information should be accurate, honest about its limitations, and freely available.
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