ASA 104 Bareboat Cruising

ASA 104 is the American Sailing coastal cruising course for sailors who have already taken ASA 103 and are interested in increasing their coastal cruising skills. It is a required course for earning an International Proficiency Certificate (IPC). Charter companies around the world recognize and often require an IPC for their bareboat charters.

In ASA 104 students learn how to sail a sloop-rigged, auxiliary powered 30 to 50 foot sailboat during a multi-day cruise upon inland/coastal waters in moderate/heavy winds and sea conditions. This ASA course covers provisioning, boat systems, auxiliary engines, advanced sail trim, coastal navigation, anchoring, mooring, docking, emergency operations, weather, and more.

Your ASA 104 course on Flathead Lake is designed to be as dynamic as the winds themselves. Typically, lessons begin at 9:00 a.m., but we keep a close eye on the weather—adjusting the start time slightly if needed for the best sailing experience. 

You’ll kick off the day at our sailing shop, where you’ll meet your ASA-certified instructor. This is your chance to share your sailing goals and expectations, allowing us to tailor a personalized plan for your sail on Flathead Lake. Whether you’re aiming to sharpen your skills, gain confidence, or simply enjoy the thrill of sailing, we’ve got you covered.

Your class will wrap up around 4:30 p.m. each day, with a 30-minute shoreside lunch break around 12:30 p.m. to recharge. Here’s what you can expect during your immersive two-day ASA 104 course:

Day 1:

8:45 a.m. – Check in at the sailing shop

9:00 a.m. – Meet with your classmates and instructor

9:30–12:30 – Sailing theory, depart the dock, hands-on sailing skills, dock the boat

12:30–1:00 — Lunch break on the shore

1:00–1:30 — Sailing theory

1:30–4:30 — Depart the dock, hands-on sailing skills, and dock the boat

​Day 2:

9:00 AM – Gather with classmates and instructor

9:15–12:30 – Depart the dock, sailing skills, dock the boat

12:30–1:00- Lunch break on the shore

1:00–3:00 – Sailing theory, depart the dock, sailing skills, dock the boat.

3:00-4:30 — Sailing exam. Review the exam with a class summary.

Temperatures on Flathead Lake can be up to 20 degrees cooler than on land. We recommend dressing in layers and packing a warm, waterproof jacket to stay comfortable. While Flathead Lake has its charm, dining options are limited. To keep your energy up, we suggest bringing your own lunch, snacks, and plenty of water each day. For class, make sure you have your ASA textbook(s), ASA logbook, and a pencil for taking notes. Being well-prepared ensures you can focus on mastering your sailing skills.

• Safety equipment and life jackets (PFD Type V)
• ASA 104 textbook
• Allotted boat time
• Advanced sailing instructor
• ASA 104 certification upon successful completion of written exam (80% or better) and practical exams (100%).

We will ship your ASA 104 textbook in the mail when you confirm your sailing course on Flathead Lake with a deposit or full payment. Remember to read your textbook and complete all the practice quizzes before joining the class on your scheduled start date.

Sorry, we do not offer live aboard for this course.

Here are some recommendations on Where to Stay

Go Sail Flathead Lake typically operates from Memorial Day through mid-September, weather and Flathead Lake’s water levels permitting.

Most summer days bring steady 10–15 knot winds from the east, clear blue skies, and a refreshing breeze off the lake—perfect for smooth, exhilarating sailing. But this is Montana, where the weather has a mind of its own. Your safety is always our top priority, so we monitor conditions closely. You’ll receive a confirmation 7 days before your scheduled lesson, and if the forecast looks uncertain, we’ll work with you to reschedule.

Our favorite sailing routes showcase the breathtaking waters between the shoreline, the rugged beauty of Wild Horse Island, and the open expanse of Big Arm Bay—an area known for consistent, spirited winds. Want to learn more about exploring Flathead Lake? Check out our Flathead Lake Boating Guide.

For the safety of your pet, no pets are allowed on our equipment or premises. The policy is implemented for safety, hygiene, and compliance with insurance or local regulations.

All cancellation requests must be submitted in writing via email. The date of receipt determines the applicable penalty. Client Cancellations: 60+ days prior: 10% of total payment retained + material costs (textbooks, logbooks, shipping). /30–60 days prior: 50% of total payment retained + material costs./Less than 30 days prior: 100% of total payment retained. Note: No refunds are issued for rescheduling, late arrivals, or early departures. A reschedule fee of 20% is possible if an alternate date is open and we can refill your spot. Company Cancellations: Weather/Unforeseen Events: If we cancel due to unsafe conditions or events beyond our control, we will offer an alternative date. No refunds are issued in these cases. Unconditional Cancellations: If we cancel for any other reason, a full refund will be provided. Liability Disclaimer: Go Sail Flathead Lake is not responsible for personal injury, equipment loss, or expenses resulting from travel delays, illness, or injury. We recommend purchasing independent travel insurance.