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Flathead Lake Sailing Memberships

Enjoy more time out on the water, at a fraction of the cost!

The Benefits of Sailing Membership

Go Sail Flathead Lake sailboat members enjoy the cheapest and most convenient way to regularly sail on Flathead Lake! No need to buy a sailboat on Flathead Lake, pay for a slip at Dayton Harbor, or dock your own sailboat— Go Sail Flathead takes care of all these sailing headaches for you. All you have to do is reserve your sailboat online, show up, and sail!

How Our Sailing Membership Works

Becoming a member of Go Sail is a painless process and we’ll have you sailing Flathead Lake on a Capri 22 sailboat in no time! Here’s how our sailing membership works, step by step:

Sailing Membership Requirements

In order to qualify to become a member of Go Sail, you must be 25 years of age or older and have received your ASA 101 certification (or equivalent). Before sailing on Flathead Lake for the first time on one of our boats, you must complete an on-the-water checkout. This involves demonstrating your ability to command a Capri 22 sailboat with little to no help. Additionally, you must be able to easily step down into the sailboat from the dock and move around the cockpit (sitting area).

a small boat in a body of water with a mountain in the background

Sign Up For Your Sailboat Membership Online

If you meet all our sailing membership requirements, click “Book Now” to begin your online sailboat membership sign-up. You will pay one membership fee for sailboat use throughout the Flathead Lake sailing season. If you sign up for a sailboat membership once Flathead Lake’s sailing season has already begun, your sailing membership will be active through the same day the next sailing season. Off-season dates (generally October through end of May) are not included in your sailing membership.

There are no hidden fees associated with our sailboat memberships. You will not pay any additional rental or guest fees for the season once you pay your yearly membership dues. 

Before you sign-up for our sailboat membership on Flathead Lake, ensure you have read through our Membership Agreement.

Sail All Season Long

Once you’ve paid for your sailboat membership on Flathead Lake, you’ll receive a unique member ID you can use all season long to make advanced sailboat reservations online. Here are a few tips for having a safe and fun time out on the water:

Preparing to Sail

Book your Flathead Lake sailing session online and then head down to the Go Sail Flathead Lake office (43546 C Street, Dayton, MT) 15 minutes prior to your scheduled departure time. All guests planning to sail with you also need to check in at the office prior to departure. All passengers aboard the vessel must sign a waiver.

Feel free to pack a cooler with all your beverages and snacks to bring aboard the sailboat. We also recommend bringing a hat, sunglasses, sunscreen, and a towel for swimming in Flathead Lake. Dress in layers— it can be much colder on the water than on land!

There is a small port-a-potty on the boat for use, however, we recommend using the port-a-potty at the Go Sail Office before you set sail on Flathead Lake. If you use the restroom on the boat, you must empty this in the sanitation station upon return to the dock.

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Sailing Area

We recommend sailing within 10 miles of Dayton Harbor because this area has the best winds on Flathead Lake. The bay between the Dayton shoreline, Wild Horse Island, and Big Arm Bay usually offers very consistent winds.

There are no public docks on any of the Flathead Lake islands. There is a swimming ladder off the back of the boat. Moor your sailboat and take a swim over to Wild Horse Island— you won’t regret it!

Sailing Conditions

Most of the summer you’ll find 10–15 knot winds on Flathead Lake. The winds are out of the east on high pressure days, with blue skies and light white fluffy clouds. These consistent winds on Flathead Lake are thanks to a thermal from the warming land pulling the cool air off of the lake.

Remember to check the weather forecast before sail on Flathead Lake. The Windy App tends to offer some of the most reliable weather reports for Flathead Lake. Please call the shop to verify weather conditions or if you have any questions. The local forecasts can be deceiving.

a small boat in a body of water

Go Sail Flathead Lake's 5-star reviews ⭐⭐⭐⭐⭐

An eyeopener into life on a sailboat

It was one of the best experiences I ever had. It was fairly intense. It was definitely a learning to sail experience. It was an eyeopener into life on a sailboat and coastal sailing. -Edi Stan

Super knowledgeable and awesome instructors.

I took the 101 course with Trevon Baker and 103 with John Barlow. They were super knowledgeable and awesome instructors. I had zero experience and now I am absolutely hooked! I can’t wait to buy my own sailboat and will be taking the 104 class as soon as I can.

– Sarah Claridge, Google Review
Wild Horse Island State Park Sailboat Charter

We took a charter sail out with Captain Taylor. He was safety conscious, encouraging and enjoyed our conversation. The water and wind was perfect. Flathead Lake is a beautiful lake. Dayton is a quiet get away from the tourist areas.

– Chris Leistico, Google Review
Professional ASA instructor and good to learn from

Captain Genevieve is absolutely phenomenal in her knowledge and how readily she shares her insight. My husband and I want to build more confidence and skills in sailing our boat and asked Captain Genevieve to help us. She provided us an incredible lesson. She carefully listened to us for what we wanted out of the lesson. During the lesson, she offered direction and helpful hints, We love Go Sail Flathead Lake and highly recommend it.

– WeExplore2015, Tripadvisor
Truly incredible experience

This was a truly incredible experience. The team made the learning fun, effective and helped the knowledge stick. Our second course in particular, 103 with Jon Barlow, left me feeling confident I could charter my own keelboat and not leave it at the bottom of a bay somewhere. Jon is a great instructor and had a manner of ensuring you were comfortable with being effective on the water. If you do the 101, definitely follow with the 103.

– Paul Johns, Google Review
Truly incredible experience

This was a truly incredible experience. The team made the learning fun, effective and helped the knowledge stick. Our second course in particular, 103 with Jon Barlow, left me feeling confident I could charter my own keelboat and not leave it at the bottom of a bay somewhere. Jon is a great instructor and had a manner of ensuring you were comfortable with being effective on the water. If you do the 101, definitely follow with the 103.

– Paul Johns, Google Review
Super knowledgeable and awesome instructors.

I took the 101 course with Trevon Baker and 103 with John Barlow. They were super knowledgeable and awesome instructors. I had zero experience and now I am absolutely hooked! I can’t wait to buy my own sailboat and will be taking the 104 class as soon as I can.

– Sarah Claridge, Google Review
Wild Horse Island State Park Sailboat Charter

We took a charter sail out with Captain Genevieve. She was safety conscious, encouraging and enjoyed our conversation. The water and wind was perfect. Flathead Lake is a beautiful lake. Dayton is a quiet get away from the tourist areas.

– Chris Leistico, Google Review
Professional ASA instructor and good to learn from

Captain Genevieve is absolutely phenomenal in her knowledge and how readily she shares her insight. My husband and I want to build more confidence and skills in sailing our boat and asked Captain Genevieve to help us. She provided us an incredible lesson. She carefully listened to us for what we wanted out of the lesson. During the lesson, she offered direction and helpful hints, We love Go Sail Flathead Lake and highly recommend it.

– WeExplore2015, Tripadvisor
Excellent Private Charter with a Captain

We wanted to try something different and unique and selected this wonderful sailing experience on Flathead Lake. Our charter captain for our afternoon trip was a lovely, charming lady who has sailed all over the World on all kinds of boats and she made this trip perfect for us with his interesting travel stories. Very safety conscious and as much (or as little) time for us to practice sailing techniques. The lake is still a little cold for me right now, but we were also offered the option to take a dip and swim in the lake if we wanted. We would highly recommend Captained Sailing Charter this experience especially if celebrating a special occasion as we were welcome to bring our own cooler with adult beverages.

– T. Rollons, Tripadvisor
Honestly unbelievable

It was honestly unbelievable. It’s not something I ever thought was even remotely possible for me. If you would have told me two years ago I would be surrounded by the sailing community, I would have lost that million dollar bet. -Morgan Spitznagle