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Baltic Sea Beast

Dive into the challenge. Conquer the Gulf of Gdansk.

Anyone who has ever immersed themselves in open water knows that swimming beyond the pool is a completely different reality.
There are no rhythmic turns at the wall, no evenly marked lanes, no constant access to the edge.
Open water is a battle - with waves, temperature, and most of all, with yourself.
If you're looking for a challenge that will test your endurance, character, and determination - choose one of our crossing routes, and we'll help you make it happen.
Safety is our top priority. Every participant is supported by a professional escort team, so you can focus entirely on the challenge itself, not on the conditions around you.
Explore the challenges

Who Are We?

The Baltic Sea Beast project was born out of a passion for extreme challenges and a deep need to push beyond personal limits.

The crossings are organized by the Baltic Cold Beast Association - founded by Aleksandra Kabelis, Piotr Biankowski, Martyna Górajewska i Beata Zwolińska.
As a team, we’ve been closely connected to the water for years. We've gained experience both as open water swimmers and as crew members on support boats, including during crossings of the English Channel, Catalina Channel, and a swim around Manhattan Island.

Additionally, for the past seven years, we've been organizing the Gdynia Winter Swimming Cup, which in 2024 gained the status of an IWSA World Cup event.

We’re creating a space where everyone can discover what they're truly made of.
The Baltic Sea is not just water. It’s a test.
And an invitation to something far beyond the everyday.

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Swim breaks

Participants

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Certificates awarded

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Years of experience

Choose Your Challenge

There are three routes to choose from - each different, each demanding.
You don’t have to know right away which one is yours.
It’s enough that you feel the urge to try.
Pick the one that speaks to you and begin your journey.

Gdynia – Hel 
~ 18 km

The legendary open-water route through the Gulf of Gdańsk - challenge yourself to complete it!

Challenge level
80%
Sign up

Gdańsk - Hel
~ 25 km

The longest route of the BSB - a test of endurance, spirit, and battling the Baltic from the very first stroke.
Please note: we require at least one month’s notice to prepare this crossing
Challenge level
100%
Contact

Rewa - Jastarnia
~ 12 km

Though the shortest, it can surprise - see for yorself!


Challenge level
50%
Contact

See what courage looks like in action.

Photos won’t capture the icy water, the fatigue after 10 kilometers, or the emotions at the finish —
but they will show you the people who made it.
See moments of struggle, triumph, and pure passion.
Because Baltic Cold Beast is not just a distance — it’s a story written with body and heart.

Leaderboard

Number Swimmer Swimsuit/Wetsuit Season Duration Country Route
1 Adele Benson swimsuit 2025 7 h 22 min England Gdynia - Hel
2 Adam Mazur swimsuit 2025 4 h 48 min Poland Gdynia - Hel
3 Martyna Górajewska swimsuit 2025 6 h 24 min Poland Gdynia - Hel
4 Andrzej Żurawicz and Michał Miotk wetsuit 2025 8 h 02 min Poland Gdynia - Hel
5 Mikołaj Kamiński wetsuit 2025 9 h 02 min Poland Gdynia - Hel
6 Borys Kania swimsuit 2025 5 h 12 min Poland Gdynia - Hel
7 Mateusz Szymański swimsuit 2025 7 h 15 min Poland Gdynia - Hel
8 Jakub Skrobański wetsuit 2025 6 h 32 min Poland Gdynia - Hel
9 Borys Kania swimsuit 2024 6 h 9 min Poland Gdynia - Hel
10 Borys Kania swimsuit 2024 6 h 19 min Poland Gdynia - Hel
11 Grzegorz Kanigowski wetsuit 2024 6 h 59 min Poland Gdynia - Hel
12 Artur Żuk wetsuit 2024 6 h 49 min Poland Gdynia - Hel
13 Mateusz swimsuit 2023 7 h 8 min Poland Gdynia - Hel
14 Mateusz Jabłoński swimsuit 2023 7 h 8 min Poland Gdynia - Hel
15 Aleksandra Kabelis swimsuit 2022 5 h 45 min Poland Gdynia - Hel
16 Piotr Biankowski and Wiktoria Lewandowska / duet swimsuit 2020 6 h 30 min Poland Gdynia - Hel
17 Karolina Szalast swimsuit 2020 5 h 18 min Poland Gdynia - Hel
sing up

Will you swim it? A mark will remain. Forever.

Everyone who completes one of the Baltic Cold Beast routes receives a personalized certificate of completion.
It’s more than just a piece of paper. It’s a testament to strength of character and resilience.
It includes the date, route, conditions, and your name — as proof that you faced the Baltic and conquered it.

Book a consultation!

We are here to help you prepare for the greatest challenge of your life.

We offer:
- in-person training/consultations in the Tri-City area,
- online consultations and training plans,
- corporate workshops,
- training camps.

Use the form below or write to us at: kontakt@balticseabeast.pl

You can also find us on Facebook/balticseabeast and Instagram/balticseabeast.

Have questions? Ready but want to know more?

We’re here to help you prepare for the biggest challenge of your life.
Write to us if you have questions about the route, equipment, training, or registration.
There are no stupid questions! :) There’s only the first step!

Contact

ul. Lesoka 16/2, 81-574 Gdynia
Pomorskie
+48 503 688 319
+48 601 990 157
Write to us
kontakt@balticseabeast.pl

Wyzwanie Rawa - Jastarnia

  • Dystans - 20 km
  • Przewidywany Czas: 2h 30min
  • Obecny Rekord: 2h 15 min
  • Certyfikat ukończenia: Tak
Poziom Trudności
50%

Wyzwanie Gdańsk - Hel

  • Dystans - 20 km
  • Przewidywany Czas: 2h 30min
  • Obecny Rekord: 2h 15 min
  • Certyfikat ukończenia: Tak
Poziom Trudności
50%

Wyzwanie Gdynia - Hel

  • Dystans - 18 km w linii prostej
  • Przewidywany Czas: 8 h
  • Obecny Rekord: 5 h 18 min
  • Certyfikat ukończenia: Tak
Poziom Trudności
50%
Czeka Cię klasyczna przeprawa przez Zatokę Gdańską: południowo-wschodnią część Morza Bałtyckiego. Trasa prowadzi przez środkowy odcinek zatoki, na otwartym akwenie oddalonym od brzegu.
Średnia głębokość w tym rejonie wynosi około 50 metrów, maksymalna sięga 80 metrów. Zasolenie to 7- 8 promili.
W sezonie letnim temperatura wody zwykle mieści się w przedziale 15 - 19°C, choć może się zmieniać w zależności od warunków atmosferycznych.
W czasie przeprawy nie występują prądy morskie, ale musisz liczyć się z wpływem wiatru, który może powodować falowanie - szczególnie przy wietrze z kierunku północnego lub wschodniego. Zdarza się, że fale osiągają ponad metr wysokości, choć zazwyczaj są znacznie niższe.
Średni czas pokonania trasy wpław to około 6 - 7 godzin, w zależności od warunków i tempa.
Na trasie możesz zauważyć meduzy, które pojawiają się sezonowo - są nieparzące i nie stanowią zagrożenia :) Sporadycznie widywane są też foki :)

Gdynia - Hel Challenge

  • Distance - 18 km in a straight line
  • Estimated Time: 8 h
  • Current Record: 5 h 18 min
  • Certificate: Yes
Challenge level
80%
You're about to take on a classic open water crossing of the Gulf of Gdańsk - the southeastern part of the Baltic Sea. The route runs through the central section of the bay, across open waters away from the shoreline.
The average depth in this area is approximately 50 meters, with a maximum reaching up to 80 meters. Salinity ranges between 7 and 8%.
During the summer season, water temperatures typically range between 15°C and 19°C, although they may vary depending on weather conditions.
There are no currents along the route, but you should be prepared for wind-driven surface waves - especially when the wind blows from the north or east. On occasion, wave heights can exceed one meter, although they are usually much lower.
The average swim time for this route is around 6 to 7 hours, depending on conditions and pace.
You may come across jellyfish, which tend to appear seasonally - they are harmless and do not sting. Seals are also occasionally spotted at a distance :)