explore uncharted waters

but can it surf?

Moomba’s Flow Surf Systems deliver the long pockets and clean lips every surfer craves. Contoured plates help reposition the surf-optimized hull in the water creating massive, lengthy surf waves from the swim platform to the back of the barrel.

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LBs of Ballast

(1,678.292 KG)

The Moomba Kaiyen delivers big-time action surf and wake action with 3,700 lbs of ballast. The available G6 system uses six pumps to drastically reduce fill times to get your wake and surf sessions going even faster.

Boat Length:   21’5″

Width:  102″

Boat Weight:  4500 lbs

Fuel Capacity:  45 gal

Seating Capacity:  15

The Future of Wake SPort Control

AutoWake with Multi-Sensor Technology features five patented systems that work together to automatically and continuously manage the position of your hull for a precise and repeatable wake for every rider, in every water condition. So let us take a few tons of weight off your shoulders with AutoWake®. Our patented technology shines as a wakesurf and wakeboard autopilot system so you can keep your focus where it should be—on delivering a great day on the water.

ready for anything

With a Moomba®, you get more standard features and more options because more of a good thing is a great thing. Moomba makes the most reliable, trusted, highest-performing towboats in their category for every owner who craves endless summers and peace of mind.


GatorStep non-skid flooring adds durability, extra cushion and ultimate traction.


Stay charged with wireless phone charging pads conveniently located in arms reach of the driver.

clearview dash design

A 7″ touchscreen is offset to give the driver unobstructed views and offers one-touch toggling between home, control, AutoWake® and Navigation display views.



There is no need to upgrade to a close-cooled engine with Moomba. Every Raptor by Indmar engine is close-cooled as factory equipment. Even on the base Raptor 400. Boom.


The 6.2L Raptor Series is inherently more efficient, giving you more low-end power while consuming less fuel. That conveniently translates to more time on the water and less time at the pump.

Intentional Design & function

A Towboat built for the thrill-seekers, evening cruisers, and the day-tripper. No matter what journey you will embark on. The Moomba Kaiyen was purposefully designed around you. And with Moomba’s comforts you can neatly organize all your gear without having to leave the floats at the dock.  

  • Ballast
  • Indmar engine 
  • Sound Dampening 
  • Rear sundeck flip-up seats
  • Non-skid Flooring
  • Transom Walk- Through 
  • Convertible rear facing seats

Moomba Kaiyen: A Boat That’s All About Fun and Performance

Moomba Boats has a rich history and heritage in the boating industry. Founded in the early 1990s, Moomba Boats has been dedicated to providing high-quality boats that are designed for fun and performance on the water. The company’s name, Moomba, is an aboriginal word that means “let’s get together and have fun,” and this is exactly what Moomba aims to do. The early days of Moombas were marked by a focus on creating affordable and accessible boats for the masses.

The Benefits of Owning a 21-Foot Boat

21-foot boats can be an ideal choice for boaters looking for a boat that’s both affordable and high-performing. Here are some of the key benefits of owning a 21-foot boat:


A benefit of a 21-foot boat is its maneuverability. These boats are small enough to be easily maneuvered in tight spaces, making them a great option for boaters who want to navigate through narrow channels or dock in tight marinas.


21-foot boats are often more affordable than larger boats, making them an ideal choice for those who want a high-performing boat without breaking the bank. These boats are often priced lower than their larger counterparts, making them accessible to a wider range of boaters.

Ease of Towing

21-foot boats are also easier to tow than larger boats, as they require less towing capacity and are more lightweight. This makes them a great option for those who want to bring their boat with them on road trips or vacations.

Wakeboarding and Wakesurfing

21-foot boats are often used for wakeboarding and wakesurfing, as their size can  provide a good wake for these sports, but also have enough power to tow riders. The Moomba Kaiyen, for example, is equipped with the Flow Surf System and AutoWake technology, which make it a standout boat for these activities.


While 21-foot boats are often used for wakeboarding and wakesurfing, they can also be used for cruising and other watersports. These boats often come equipped with high-quality sound systems, comfortable seating, and other amenities that make them a great option for relaxing on the water.

Overall, 21-foot boats offer a great balance of affordability, performance, and versatility. If you’re in the market for a boat that’s both fun and functional, a 21-foot boat like the Moomba Kaiyen might be the perfect choice.


Why Choose the Moomba Kaiyen, a 21-Foot Boat?

Despite its smaller size, the Moomba Kaiyen is a boat that’s packed with features and capabilities. With its advanced technology and powerful engine, the Kaiyen is designed to provide a thrilling and unforgettable experience on the water. The boat’s smaller size makes it ideal for wakeboarding and wakesurfing, as well as for cruising and other watersports. The Moomba Kaiyen’s sleek design and high-quality construction make it a standout option among other 21-foot boats.

Moomba Kaiyen vs. Larger Boats

While larger boats may offer more seating and storage capacity, the Moomba Kaiyen’s smaller size can be an advantage for certain activities. The boat’s maneuverability and speed make it an excellent choice for wakeboarding and wakesurfing, and its affordable price-point makes it an accessible option for those who want to experience the joy of boating without breaking the bank.


In conclusion, the Moomba Kaiyen is a boat that’s all about fun and performance. With its sleek design, advanced technology, and powerful engine, this 21-foot boat offers everything you need for a day of adventure on the water. The Moomba Kaiyen is designed to provide optimal wakeboarding and wakesurfing capabilities, as well as a comfortable and enjoyable cruising experience. Its smaller size makes it easy to maneuver and tow, while still offering plenty of power and speed.

If you’re looking for a boat that’s both affordable and high-performing, then the Moomba Kaiyen is the perfect choice. With its innovative construction, advanced features, and sleek design, the Moomba Kaiyen is a true game-changer in the world of boating. Check out the Moomba website for more information on pricing, specs, and availability, or contact a Moomba dealer near you to schedule a test drive and experience the Kaiyen for yourself. Don’t miss out on the chance to own one of the best boats on the market today.


Frequently Asked Questions

What is the Moomba Kaiyen?

 The Moomba Kaiyen is a 21-5 foot boat that is designed for fun and performance on the water. It is equipped with advanced features like the Flow Surf System and the AutoWake technology, which make it an ideal choice for wakeboarding, wakesurfing, and other watersports.

How much does the Moomba Kaiyen cost?

The 2023 Moomba Kaiyen’s MSRP starts at around $104,500. However, prices may vary depending on the specific features and options that you choose.

What are some key features of the Moomba Kaiyen?

The Moomba Kaiyen is equipped with several advanced features that make it a standout boat, including the Flow Surf System, the AutoWake technology, a high-quality sound system with Bluetooth connectivity, and wireless phone charging capabilities.

What are some advantages of a 21-foot boat?

Some advantages of a 21-foot boat include their maneuverability and affordability, as well as their ease of towing and storage.

What are some disadvantages of a 21-foot boat?

 Some disadvantages of a 21-foot boat include their limited seating and storage capacity, and their potential to not handle rough water conditions as well as larger boats.

Why choose a 21-foot boat over a larger boat?

21-foot boats can be an ideal choice for those who want a boat that is easy to maneuver and tow, as well as for those who want an affordable option for wakeboarding and wakesurfing. Larger boats may offer more seating and storage capacity, but they can be more difficult to handle and more expensive.

What makes the Moomba Kaiyen stand out among other 21-foot boats?

The Moomba Kaiyen Stands out due to its advanced features, high-quality construction, and affordable price point. Its innovative technology, like the Flow Surf System and the AutoWake technology, make it a game-changer in the world of wakeboarding and wakesurfing.