Most days on the Kennebec River, the dam upstream releases water at 5,000 cubic feet per second. That’s enough for class III and IV whitewater, a full day through the Kennebec Gorge, and the kind of rafting experience that brings groups back year after year.
Four times a season, something different happens.
Harris Station Dam releases the river at 8,000 cubic feet per second — a turbine test that transforms the Kennebec into a different river entirely. The waves get bigger. The current gets faster. And a rapid called Maytag appears that simply does not exist at normal water levels.
This is high water on the Kennebec. And for the people who have done it, it’s the one they talk about most.
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What Changes at 8,000 cfs
The Kennebec River runs on a daily scheduled release from Harris Station Dam. On a standard day, that release is 5,000 cubic feet per second — a consistent, reliable flow that makes the Kennebec one of the most dependable whitewater rivers in the Northeast.
At 8,000 cfs, the same river looks and behaves completely differently. Waves that are manageable at normal levels become massive standing waves. Eddies that rafts can duck into disappear. The pace of the river picks up significantly. And the Kennebec Gorge — already one of the most dramatic canyon settings in New England — becomes something you have to experience to fully understand.
Every rapid on the river gets bigger and faster. But the biggest change happens at one specific spot in the gorge, where the additional volume creates a feature that isn’t there at all on a normal trip day.
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Maytag: The High Water Exclusive
Maytag only exists at 8,000 cfs. At normal water levels, it simply isn’t there.
At high water, Maytag forms as a powerful hole in the center of the river. Guides describe it exactly as the name suggests: it puts rafts, and sometimes the people in them, through the wash cycle. Maytag has one of the highest rates of swimmers, dump trucks, and flips of any rapid on the Kennebec. That is not a warning to discourage people — it is an honest description of what makes it the most talked-about experience on a high water day.
Not every group runs Maytag. Guides assess each group at the start of the day, and for many youth groups and first-time high water participants, the answer is to take the left line at magic falls instead.
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Magic Falls: The Class IV Highlight of Every Trip
Magic Falls is one of the most famous rapids on the Kennebec River — a class IV drop that runs at every water level and is a highlight of every standard Kennebec trip at 5,000 cfs. It is not a high water exclusive. It is one of the best rapids on the river on any day of the season.
At high water, Magic Falls gets even bigger. The additional volume makes it faster and more powerful, and the left line through it becomes one of the most thrilling runs on the river. For groups who come out on a high water day and aren’t in the right position for Maytag, Magic Falls is not a consolation prize — it is an outstanding class IV experience at its fullest.
The two runs — Magic Falls on the left and Maytag in the center — sit at the same location in the gorge. Guides make the call on which line each raft takes based on the group, their paddling, and the conditions on the day. Both are memorable. They are just memorable in different ways.
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High Water Dates
High water dates are scheduled in advance based on the dam’s turbine testing calendar. Adventure Bound runs four high water trips each season. One in June, one in July, and two in September. Check out the year release dates here.
September high water is a particularly special experience. The Kennebec Gorge in fall foliage is spectacular, the crowds are smaller than summer, and the intensity of high water combined with the color of the canyon walls is unlike anything else on the river calendar. These dates fill up — if you’re thinking about a fall high water trip, reach out now.
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Who High Water Is For
High water on the Kennebec is available to anyone who meets the minimum age requirement of 12 years old. No prior rafting experience is required — Adventure Bound’s Registered Maine Guides are in the raft with your group the entire day, and the safety briefing covers everything participants need to know before getting on the water.
That said, high water is a more intense experience than a standard Kennebec day. The additional volume means faster water, bigger waves, and less time to recover between rapids. Participants should be comfortable getting wet, capable of paddling when called upon, and genuinely ready for a more demanding river experience.
If your group includes participants who aren’t quite ready for Maytag, that’s not a problem. The guide will run those rafts through Magic Falls on the left — which at high water levels is still a class IV experience worth making the drive for.
High water is particularly popular with groups who have rafted the standard Kennebec trip and want something more, experienced youth groups and outing clubs, returning guests who plan their summer or fall around the high water dates, and athletic teams using the Kennebec for preseason bonding.
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What a High Water Day Looks Like
Arrival is at 8:00 AM at Adventure Bound in Caratunk. After check-in and waiver collection, guides run a full safety briefing and gear fitting — wetsuits, life jackets, helmets, and paddles. A 30-minute bus ride to the put-in at Harris Station Dam follows.
The raft enters the Kennebec Gorge around 10:00 AM and runs approximately six miles of class II-IV whitewater including Taster, Whitewasher, the Alleyway, and the high water section where guides route each raft through either Maytag or Magic Falls depending on the group. At Carry Brook stairs, the group picks up inflatable kayaks and snacks before continuing on the lower river for another six miles of flatwater paddling and swimming.
Groups return to Adventure Bound around 2:00 PM. A grilled barbecue lunch — grilled chicken or veggie burger, fried rice, pasta salad, cookies, granola bars, and drinks — is waiting, along with a photo slideshow of the trip.
The day wraps up between 3:00 and 4:00 PM. Full access to the Adventure Center amenities continues: pool, hot tub, disc golf, volleyball, basketball, and canoes at the waterfront.
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High Water vs Standard Kennebec: What’s the Difference?
The same 12-mile trip. The same experienced guides. The same riverside BBQ at the end. The difference is the river itself.
At 5,000 cfs, the Kennebec is a class III-IV experience that works well for first-timers, youth groups, and families with kids age 10 and up. Magic Falls runs on the left and is one of the highlights of the day. It is a genuinely exciting trip that doesn’t require prior experience.
At 8,000 cfs, the Kennebec is bigger, faster, and more demanding. Maytag appears in the center of the river. Magic Falls gets more powerful. The gorge section hits harder throughout. The minimum age is 12 rather than 10. And the people coming off the river at the end of a high water day tend to have a particular look — the expression of someone who just did something they weren’t entirely sure they could do.
Both trips are fully guided and fully equipped by Adventure Bound. The choice comes down to what your group is looking for.
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What to Wear for High Water
Wetsuits are provided when conditions warrant. Wear synthetic layers underneath (no cotton), water shoes or sneakers with a heel strap, and bring rain gear.
September high water days are cooler than July, and layering appropriately makes a significant difference in comfort on the water. Full packing guide.
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Book Your High Water Trip
Check availability and book online at adv-bound.com/high-water-maine-whitewater-rafting, or reach out at rafting@adv-bound.com or 207-672-4300.
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