World Open Water Swimming Association

Promoting open water swimming safety, sportsmanship, and success worldwide


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Open Water Swimming Educational Programs

Comprehensive open water swimming courses and coaching certification

Coaches Education Program
This is a comprehensive Open Water Swimming Coaches Education Program for pool swimming coaches, triathlete coaches, masters swimming coaches, fitness coaches, endurance sports coaches and multi-sport coaches.

WOWSA Open Water Swimming Course
Open Water Swimming Course young athletes, adult athletes just getting into the sport, triathletes who are better at running or cycling, or multi-sport athletes who wish to improve their swimming performance.

Open Water Swimming for Triathletes
This course is a short, fun and educational preview of what to expect and how to succeed in the swim leg of your triathlon.

WOWSA Safety for All
Online training course for event organizers, staff, and swimmers. Reduce risk of incident by providing a brief but comprehensive education on open water safety. Course covers kayak and escort boat protocols, communication plan, medical staff and more.

Programa Educativo para Entrenadores
Éste es un programa educativo integral para entrenadores de natación en aguas abiertas dirigido a entrenadores de natación en alberca, de triatletas, de natación máster, de fitness, de deportes de resistencia y de deportes múltiples.


Our Sponsors

Explore Essential Gear for Open Water Swimmers


Over a decade ago, JOLYN reinvented women’s competitive swimwear, making it better fitting, more durable and as unique as the women that inspired JOLYN’s design team. With a heritage of designing high-performance swimwear for world class athletes, JOLYN makes a range of swimwear that fits comfortably, stays put and is made to last.



Sharkbanz utilizes patented magnetic technology to deter sharks and stingrays. Developed from nearly two decades of scientific research and independent testing, Sharkbanz 2 is a wearable device popular among open water swimmers. It enhances safety in training and competitions, can be worn on the wrist or ankle, and requires no batteries or charging.


Nike Swim

Nike Swim offers an extensive range of products for both competitive and recreational swimmers. Their collection features HydraStrong swimwear and essential swim accessories such as the Nike Silicone Cap, Expanse Mirrored Goggle, Legacy Polarized Goggle, Expanse Swim Mask, Quick Dry Swim Towel, and the durable Repel Backpack crafted for durability, comfort, and style.


UltraSwim 33.3 #3 Croatia

UltraSwim 33.3 #3 Croatia, the epic adventure swim race – 33.3km spread over 4 days in a point-to-point ‘off-road’ format on 17-20 May 2024. The ULTRA package includes 4 nights hotel accommodation, breakfasts and finish line lunches.


dryrobe® Advance Long Sleeve. Often imitated, never bettered – dryrobe® Advance is the original outdoor changing robe. Designed to allow you to get changed in any location, it offers the ultimate protection from what nature has to offer, helping you swim all winter long. dryrobe® Advance has a unique fast-drying fleece super-warm lining, made with 100% recycled polyester. Learn more about dryrobe

WhatsApp Image 2024-01-13 at 22.59.03

HERO12 Black Waterproof Camera takes GoPro’s best-in-class image quality to the next level with new HDR (High Dynamic Range) 5.3K and 4K video, upgraded HyperSmooth 6.0 video stabilization and an industry-leading 177° field-of-view with Max Lens Mod 2.0. These features are wrapped into GoPro’s legendary waterproof, ultra-rugged design to ensure you get the shot, no matter the environment. Learn more about GoPro


Ratify Your Swim - Rules & Regulations

Certify Your Event - Ratify Your Swim - Rules & Regulations
swim ratification
Nat Geo lookalike

Top 100

World Open Water Swimming Events

Maui Channel Swim

Solo and relay swimmers cross a deep-water, beautiful channel as they gaze upon 5 islands (Lanai, Maui, Molokai, Oahu and Hawaii) if the weather permits. Generally calm conditions, colorful marine life and clear warm cobalt blue water makes this event the most popular relay swim in the world. Marine life, strong winds and strong currents on occasion


Screenshot 2023-08-12 at 23-28-37 Ultramarathon Swim Series

Top Open Water Swimming Books


Top Open Water Swimming Podcasts


Virtual Clinics

World Open Water Swimming Association