Sister Lakes, Michigan ยท Est. 1999 ยท Summer lessons now booking

Progress
is not accidental.
It is built.

We teach wakeboarding, wakesurfing, and waterskiing on Round Lake in Sister Lakes, Michigan. We also sell Nautique and Barletta boats, run a watersports pro shop, and store and service boats year round.

A large group of children and adults holding wakeboards and stand-up paddleboards on a sandy beach near a body of water, smiling and celebrating.

1,500+

RIDERS COACHED

25+

YEARS ON ROUND LAKE

5

STARS ON GOOGLE

Summer lesson slots are filling fast

We typically book out weeks in advance once summer starts. If you are planning to be on the water this summer, it is worth locking in your spot now.

What are you looking for?

  • I want lessons

    Wakeboard, wakesurf, waterski, and wakefoil. Every session is private, coached, and built around real progression. We have taught riders from age 2 to 82. Whatever level you are at, we will work to make sure you leave better than you arrived.

    A young boy in a life jacket and striped shorts standing on the edge of a boat talking to a man in a white shirt sitting on the boat, with a lake and houses in the background.
  • I want to go to camp

    A full day on Round Lake for kids ages 8 to 13. Small groups, real coaches, and the kind of summer day kids tend to talk about for years. Pack a lunch. Bring sunscreen. We handle everything else.

    Nautique wake boat and Barletta pontoon boats
  • I want to buy a boat

    Authorized Nautique and Barletta dealer. Pre-owned boats available too. Tell us your lake, your family, and how you use the water. We will work to find the one that fits.

    A display of boats inside a building, with one on a raised platform and another on the floor, along with informational panels and banners.
  • I want gear

    Liquid Force, Radar, Surftech, Onewheel, Acme, and Mission. Every product in the shop is gear we ride ourselves. No guessing. No generic recommendations.

    Surfboards displayed upright in a retail store, along with helmets, bags, and other sports gear on a wire grid display.

WHO WE ARE

On Round Lake since 1999

Bill Boston grew up in Sister Lakes. He competed in waterskiing and wakeboarding, and when he looked around and saw that nobody in the area was teaching people to ride the right way or selling gear serious riders could trust, he built the place himself.

What started as a pro shop and lesson facility has grown over 25 years into a full Nautique and Barletta dealership with structured coaching, indoor heated storage, and a team that cares about the same things Bill does.

The focus has never changed. Get people on the water. Teach them well. Set them up with the right equipment.

We only sell what we use. We only recommend what we believe in. If we would not put our own family in it, we will not sell it to you.

We are a board shop that sells boats. Not a boat shop that sells boards.

A waterfront building with a large garage door, a red flag with white text, parked cars, a body of water, trees, and a bright blue sky with clouds.

What People Are Saying

 

โ€œBill and his staff are fantastic. totally professional, safe, and amazing coaches. My girls learned so much in half an hour and have more confidence and understanding of the sport.โ€

โ€” David Ludden ยท Southwest Michigan

โ€œThis is our second year doing the wake boarding camp and they have such a fun time and are getting better and better, but more importantly, more confident as well. they are very communicative via phone and text. โ€

โ€” Monica Brown ยท Southwest Michigan

How It Works

  • Step 1 ยท Learn

    Start with a lesson. We teach the fundamentals the right way so every skill you build after has something solid underneath it.

  • Step 2 ยท Develop

    Come back. Book regular sessions or join camp. Progress takes repetition and we give riders a real path forward, not just time on the water.

  • Step 3 ยท Own

    When you are ready for a boat, we help you find the right one. We ask the questions most buyers never think to ask until after delivery.

  • Step 4 ยท Sustain

    We store, service, and winterize your boat so it is ready to go when summer comes back around. No scrambling. No surprises. Just get in the boat and go.

Boats We Carry

  • A group of people on a luxury motorboat with tan seating, cruising on calm water during sunset or sunrise.

    Nautique

    Among the best performance wake boats in the world. We have ridden Nautique since day one and we sell them because we believe in them.

  • A motorboat on a lake with several people onboard, including a man sitting at the helm, with life jackets, an American flag, and various gear visible on the boat.

    Barletta

    Premium pontoons built in Indiana for Midwest lakes. Built for families who want comfort, quality, and a boat that fits the way they actually use the water.

  • A white and red motorboat on calm water with trees and houses in the background.

    Pre-Owned

    Inspected, serviced, and ready to go. Every pre-owned boat we sell has been through our shop.

Ready to get on the water?

Book a lesson, ask about a boat, or just call us. We are here every day of the summer.

Follow Us on Instagram

@theboarderline

A young girl with curly blonde hair sitting on a paddleboard, wearing a life jacket and holding a fishing pole, smiling at an adult man sitting in a boat on a lake, with houses and boats visible in the background.
Two men enjoying time on a boat; one shirtless, wearing camouflage shorts and a baseball cap, giving a thumbs-up; the other in a blue t-shirt and patterned shorts, smiling; water and boats visible in the background.
Group of kids on a boat, smiling and making hand gestures, some in swimsuits, with a lake and shoreline with houses in the background.
Two young boys with blond hair and casual clothes sitting on a boat near a body of water, smiling and making playful gestures.