Seboomook River Trip

– Inflatable Kayak Trip –

Penobscot River (CLASS III)

Seboomook Section



Trip Length

• 9-10 Hours


• May – October

Minimum Age

• 16


General Overview:

The Seboomook River Inflatable Kayaking Trip is only scheduled to run a few times per year, depending on dam releases. This is the most remote river trip that we run and is a favorite among our guide staff. This trip is nearly a 2.5 hour drive from our Penobscot Outpost – truly a hidden gem within the North Maine Woods that should not be missed. When we get there, we run this short 2.5-mile section of river twice because of how much fun it is.



Your river trip will be run out of our Penobscot Outpost in Millinocket, ME. Check-in for your Seboomook River Trip is at 7:00am. After check-in, we outfit you with your river gear: paddles, life jackets, and helmets are provided, while wet suits and splash jackets are available to rent at a small cost. Then we begin our journey out to this hidden piece of paradise.


Your Seboomook Adventure:

Before you hit the river, your guides will give you a safety briefing on the river and explain how to maneuver your inflatable kayaks. Once you get on the water, your guides will also demonstrate the best ways to paddle through rapids. In the first flatwater section of the river, everyone will practice paddling as well as climbing back into their boat so that you are comfortable before the fun begins!

The stretch of river that we paddle is only a few miles, but there’s no shortage of fun! There are about 7 major rapids with flatwater sections in between. Your guides may have everyone hike up on shore to scout some of the rapids, but typically one of your guides will paddle through the rapid first to show you the best lines to take and set up safely at the bottom of the rapid. Then it’s your turn!

Some rapids have big 5 foot drops and others have longer wave trains to paddle through. Many rapids also have great places to learn how to “surf” – your guide will show you the basics of surfing on this first run down the river. There are endless spots to play on the river, and since you have your own boat, you really get to choose your own adventure!

Once you make it through the 2.5 miles of rapids, we take out at the Roll Dam campground area and get ready for the next round of serious fun! We’ll take a break for a hearty picnic lunch where we take out and fuel up for round two! Your guides will load up the gear and shuttle back to the put-in.

It is up to you how to structure the second run of the river, as people are more comfortable after the first run. You can try to get “redemption” at any rapid that had challenged you the first time, or you can choose to surf at many different play spots that you may not have had a chance to surf at on the first run. We’ll tailor the trip to what your group would like to do!


Post Trip:

After two runs on the river, we will pack up the gear return back to the Penobscot Outpost. This long drive takes you down dirt roads in some of the most remote areas of Maine, so be on the lookout for moose and other wildlife! This concludes your Seboomook adventure!

Options/Pricing (per person)

  • Monday-Friday – $149

What’s Included:

  • 2.5 mile inflatable kayaking trip on the Seboomook Section of the Penobscot River
  • Mid-trip snack
  • Post-trip meal

What’s Not Included:

  • Taxes
  • River Access Fees
  • Gratuity For Guides And Restaurant Staff

Options/Pricing (per person):

  • Yurt or Cabin – $258 – $296
  • Bunk House – $242 – $272
  • Campground – $212 – $242

What’s Included:

  • 2 Nights Lodging
  • Breakfast (both mornings)
  • Dinner (both nights)
  • Lunch on Rafting Day
  • Wetsuit Rental

What’s Not Included:

  • Taxes
  • River Access Fees
  • Gratuity For Guides And Restaurant Staff

Where Should I stay for my Penobscot River trip?



Bunk Houses

Bunk Houses

Summer Camps

Summer Camp



Frequently Asked Questions

Why should I go whitewater rafting in Maine?

Our Maine whitewater rafting trips take you into New England’s finest wilderness areas and provide you with views you could only get to on a raft! Maine is also one of the few places in the world with guaranteed whitewater rafting trips 7 days per week. Most rivers rely on snowmelt or rainfall to give them enough water to raft on - Maine get’s enough water from its dams to raft every day from May to October. This means the water we raft on is much warmer than other parts of the world - sometimes reaching 70 degrees in July and August. Maine - The Way Rafting Should Be!

How far in advance should I book my rafting trip?

The earlier the better! Especially if you plan on booking lodging with us. While we do take last minute reservations, we strongly suggest that you book your trip as far in advance as possible. We have been able to get people on the river with less than a day's notice, but we prefer to have ample time to arrange guides and logistics for your river trip.

What should we bring?

We outfit you with your life jacket, helmet, and paddle. We also have wet suits and splash tops available to rent. We recommend dry fit, breathable clothing!

Are photos or videos part of the trip?

Every trip either has a photographer or a videographer recording your raft as it goes through the biggest and best rapids of the day! When we get back to base, there is a photo or video presentation where you get to watch yourself conquer the mightiest rapids on the river. For many, the photo/video presentation is one of the highlights of the trip. Afterwards, the photos and videos of your raft are available for purchase in the gift shop. Share your Maine rafting trip memories with your friends on social media and be sure to tag @threeriverswhitewater

What meals are included with the trip?

There is a river lunch included in your trip. You get your choice of burger, veggie burger, fish, chicken, or steak and an assortment of freshly prepared sides like mashed potatoes, dinner rolls, river rice, cole slaw, and our chocolate chip cookies. 

NOTE: Guests with special dietary requests should notify us beforehand so we can best accommodate their needs.

How many people can fit in a raft?

All of our rafts are 16 feet long. The maximum number of people in one raft is 10 plus the Registed Maine River Guide. Most rafts end up with 6 to 8 people in them. No matter how many people you end up rafting with, it all comes down to how well you work as a team to paddle through the rapids. 

Is rafting fun?

No... it’s SERIOUS FUN! You’ll have a hard time finding a more fun way to spend the day after you have been on one of our Maine white water rafting trips. Think about how much fun you have while on a roller coaster - well it’s even more fun than that! Because instead of just being along for the ride, YOU are a part of the experience.

Is this the right adventure for my family/group?

Most likely, yes! Rafting is fun for everyone and our Registered Maine River Guides will cater the experience on the river to you and your group. The time spent on the river and in these wilderness areas is priceless. And without any cell phones to distract you, you’ll find it to be surprisingly refreshing.

Do I need to have experience to go rafting?

Not at all! Many of our guests are first timers and our Registered Maine River Guides pride themselves on their ability to teach their crews how to work together on the river. You will receive plenty of instruction on safety prior to the trip and there is time to practice paddling before you run any rapids. We LOVE taking first timers down the river and exposing them to our favorite places in the world. If you are an experienced rafter, we recommend our most challenging trip on the Penobscot River.

Can I bring my phone with me on the rafting trip?

It’s not recommended and won’t even have service - and that’s the best part! You will be free of distractions and really get to enjoy the pristine wilderness areas that you’re in. You’ll find that when you unplug for the day, it’s a lot easier to reconnect - with nature, your friends, your family, and yourself.

What if it’s raining on the day I’m supposed to go rafting?

We run our rafting trips 7 days per week - rain or shine! In fact, rafting is probably the most fun thing you can do outside in the rain - you’re gonna get wet anyways!

What sets Three Rivers apart from other rafting companies in Maine?

The Three Rivers Family has the highest standards for safety and guest service. We spend more time and money training our staff than any other outfitter in Maine. Our goal is for you to leave Three Rivers with lifelong memories. Since 1997, our commitment to being the best rafting outfitter in Maine has built our reputation as “The Home of Serious Fun”. But don’t just take our word for it - head to Trip Advisor to see why we have 300 more 5 Star Reviews than any other rafting outfitter in the state