| noww.nl | KNZB | The website, noww.nl, is a KNZB (Dutch Swimming Federation) website that has recently been restored after a significant outage, resulting in a gap in its history. It includes sections for events, rankings, photo and video galleries, and links to related organizations like IISA (International Ice Swimming Association) and IJsberen België, as well as a calendar of events. The website focuses on swimming competitions such as Zeezwemmen Middelkerke, the LEN Cup stage, and the Rondje Pampus event, and offers a brochure and online classification system. | | rankings 44 swimming 850 calendar 1556 brochure 1642 event 45199 | Drimmelen → Biesbosch 313 |
| frisseduik.nl | FrisseDuik | The website presents various forms of swimming coaching offered by Susan Houbraken, including private workshops, online programs, and 1-on-1 coaching in open water locations, including the Noorderplassen in Almere. FrisseDuik offers concrete registrations for workshops and programs, such as the winter swimming program 2025/2026, and also provides information on open water swimming and the general swimming conditions. The website contains a blog with inspiration and articles about open water swimming, as well as information about collaborations and media mentions, and the background of Susan Houbraken, who has been active in Dutch waters for 8 years. | | workshop 19325 coach 25810 | Flevoland → Almere 7765 |
| reddingsbrigadeoss.nl | Reddingsbrigade Oss | The website contains general information about the RBO, including its postal address and contact details. There is information about various training courses, such as the Lifesaving Marathon and the Swim ABC track. The website offers information about event oversight, sponsorship, and water rescue, including components of the rescue teams (Auto to Water, Pool components, SERC/EHaD). | Volunteering → Rescue 48 | water rescue 11 reddingsbrigade 13 training courses 224 swimming pool 1664 membership 10442 event 45199 | North-Brabant → Oss 2962 |
| grindgat.nl | Grindgat Zwemmers Maastricht-Eijsden | The website provides information about the organization of open water swimming events, including the Midsummer Long Distance competition and annual races. Furthermore, details are provided about the Maastrap, a traditional flag line along the Maas, and its organization. The website offers information about swimming groups, training sessions, and membership opportunities for the Grindgat Zwemmers Maastricht-Eijsden. | Associations → Sports Associations 1082 | swimming 850 membership 10442 event 45199 | Eijsden-Margraten → Eijsden 266 |
| warandeopenwater.nl | Betheme | The 90th edition of the Swim Classic will not take place in 2025, but previous editions were a popular competition for both amateur and professional swimmers. The website provides information on the program, results, registrations, sponsors, and volunteers, as well as opportunities for swimming coaching and performance swimming tours. The event originated in the 1920s by a group of men who swam the newly opened Wilhelmin Canal and has since grown into an important part of the Dutch open water circuit. | Swimming → Competitive Swimming 28 | swimming 850 results 3954 registration 4366 event 45199 | North-Brabant → Dongen 851 |
| larsbottelier.nl | Lars Bottelier | The website provides a biography of Lars Bottelier, a professional openwater swimmer. It keeps visitors up-to-date on Lars' progress toward the Paris 2024 Olympic Games through updates and blog posts. The website encourages visitors to support Lars and seek potential partners. | Physical → Trampolining 10 | olympic games 49 blog 13392 | |
| groningenswimchallenge.nl | Groningen Swim Challenge | The event, held on August 30, 2025, offers the opportunity to swim for the UMCG Kanker Researchfonds, with an already raised amount of €42,838.00. The website contains information about the different swimming distances (Classic Swim, City Swim, Short City Swim, Classic City Swim, Junior City Swim), registration, safety, sponsors, news, a calendar, vacancies, a photo gallery, newsletters, and contact details. Donations are possible, and the interim standings of the proceeds can be viewed. The website offers news, an agenda, vacancies, a photo gallery, newsletters, and contact information. There is a possibility to donate and view the interim standings of the proceeds. | Context → Community 57410 | umcg 25 cancer research 27 swimming 850 participant 1934 registration 4366 event 45199 | City Center → Eastern City Center 53 |
| b-b-z.nl | De Biesboschzwemmers (teamBBZ) | The website contains an archive of data from various EMK (European Masters Swimming Championships) and WMK (World Masters Swimming Championships) events that the club has organized or participated in, with locations ranging from London to Kranj. The site describes the club's activities, including competition, training, club championships, open water swimming, and participation in various competitions, such as the Dutch Championships (NMK) and Yearling Races. The website presents statistics, rankings, personal times, and records of the members, and includes news reports about victories and prizes achieved by members, such as Lars de Kooter and Ingmar Visser. | | record 1098 competition 4759 member 10154 training 28133 | |
| thoolsemijl.nl | thoolsemijl.nl | The event, scheduled for August 23, 2025, is designed for swimmers of all levels, with a special option for youth (11-14 years old) who can receive free participation by joining. For more experienced swimmers, there is an XL variant of 3.7 km, where they swim the distance on a raft between the Oesterdam and Strijenham. Registration for the 2025 edition is open and can be completed through the website, where participants can choose between the Regular (1.85 km) or XL (3.7 km) variant. | Sports Events → Swimming 12 | swimmer 27 distance 270 registration 4366 event 45199 | Tholen → Poortvliet 51 |
| reddingsbrigade-erica.nl | Reddingsbrigade Erica | The brigade offers swimming, water rescue, and supervision, as well as training courses in lifesaving and lifeguarding. Reddingsbrigade Erica is affiliated with Reddingsbrigade Nederland (KNBRD), the umbrella organization, and operates from various locations, including the Laco sportcentrum swimming location in Cuijk. The organization also offers opportunities for donations, membership, and volunteering, with a history dating back to 1966. | Volunteering → Rescue 48 | water rescue 11 training courses 224 swimming 850 supervision 1184 safety 5819 volunteer 8367 | Land van Cuijk → Cuijk 832 |
| bowr.nl | De Biesboschzwemmers | Following 11 editions of open water races, the organization has transitioned to a swim route of 4, 2, or 1 kilometer, scheduled for Sunday morning, September 7, 2025. The events are organized in collaboration with ZwemAnalyse, an organization that has been active for years in organizing swimming trips and promoting open water swimming. Part of the proceeds will be donated to the ALS foundation, an organization that the association De Biesboschzwemmers deeply cares about. | Outdoor & Recreation → Outdoor Events 110 | als 45 sunday 208 | Altena → Werkendam 399 |
| ferryweertman.nl | Ferry Weertman | Ferry Weertman is an Olympic, World, and European champion in the 10km open water swimming. He has won multiple international titles, including those of 2016, 2017 and 2014, 2016, and 2018. Ferry offers lectures and swimming clinics to help people achieve their dreams and focus on their performance. | Sports Clubs → Water Polo 219 | olympics 21 champion 77 swimming 850 clinic 1079 documentary 1081 goal 4974 | |
| dekoudwatercoach.nl | De Koudwatercoach | De Koudwatercoach teaches people how to swim safely and responsibly in cold water and provides assistance in overcoming fear of cold water. The website offers various services, including cold water training outdoors, open water coaching, and regular swimming lessons, geared towards both beginners and experienced swimmers. The Koudwatercoach shares her personal background and passion for outdoor swimming, stemming from a challenge and further training to become a cold trainer and swimming instructor. | | swimming 850 training 28133 | |
| topswim.nl | Topswim Open Water Coaching | The website provides basic open water swimming courses, teaching participants about navigation, safety, and the use of swimming equipment. The course is suitable for recreational outdoor swimmers and participants in events such as city swims and triathlons, and offers feedback via video. The training sessions take place at various locations in Amsterdam, including Bogortuin Java Island, Steigereiland IJburg and Watersportcentrum Sloterplas, and are scheduled on different dates and times. | Sports & Fitness → Sports Programs 367 | swimming 850 water 2501 video 6714 course 14728 | North-Holland → Amsterdam 41253 |
| dedemsvaartac.nl | Zwemvereniging Dedemsvaart AC | The swimming association was founded in 1967 and is affiliated with the Royal Dutch Swimming Federation, where it participates in various championships. The swimmers of Dedemsvaart AC are coached by a team of 10 coaches and the association is active in the national swimming competition, in the top division. The website contains recent news articles about competitions and performances of the swimmers, including victories in PR cups and participation in various swimming events. | | swimmer 27 record 1098 competition 4759 association 8562 news 15293 coach 25810 | Hardenberg → Dedemsvaart 413 |
| winputzwemmers.nl | De Winputzwemmers | The group organizes open water swimming sessions and winter swimming activities, also known as ‘dips & dompelen’. Group swimming is promoted as safer and more enjoyable than swimming alone. The website describes the health benefits of cold water swimming, such as an increased immunity and stress reduction. | Social Issues → Social Organization 13315 | swimmer 27 swimming 850 community 7931 | Moerdijk → Zevenbergschen Hoek 669 |
| mmssports.nl | MMSSports | MMSSports organizes swimming trips such as the IJsselmeer crossing, the Giethoorn Challenge, and the Biesbosch Challenge. The website offers various swimming weekends, including the Nature Park Weekend, the Biesbosch Swimming Weekend, and the new Green Heart Swimming Weekend. MMSSports guides athletes to complete challenges and offers suitable swimming challenges for different levels, from beginners to competitive swimmers. | Sports Events → Swimming 12 | challenge 1697 | Steenwijkerland → Kalenberg 178 |
| checklistopenwaterzwemmen.nl | Checklist Open Water Zwemmen | The blog contains posts about various swimming trips, such as the swim in the Hollands Diep in 2022 and training sessions for the IJsselmeer. The author shares personal experiences with open water swimming, including incidents with hypothermia and ice swimming, and the challenges associated with them. The blog also covers topics related to equipment, such as choosing the right swimming goggles and adjusting a wetsuit. | Water Sports → Water 2963 | swimming 850 challenge 1697 trip 2032 equipment 4143 | Hoeksche Waard → Strijensas 36 |