Skip to content


World's longest unsupported swim dragging 105 kg gear⚠️

Name: Jari Cennet Tammi

Currently: World Record attempt #2

Age: 64

What: World’s longest unsupported Swim

Where: Stockholm – Helsinki across the Baltic Sea

Start: 10th of June

Distance: 500km

Duration: 32-37 Days

Average daily swim: 13,7 km

Calories burnt/Day: 4850

Weight loss: 12kg (333gram/Day)

Bags: 1x PRO DRYBAG 100L

Laptop case: DRYCASE

Tools: Multi-tool

Total weight of raft: 105 kg, Packed with tent, dryfood, nuts, solar panel, watermaker and other essential gear

Live GPS tracking: Link

Jari started his second attempt for the world’s longest unsupported swim this weekend. Swimming from Stockholm, Sweden 500 km to Helsinki, Finland. A 32-37 day long extreme adventure where he will be averaging 13,7 km swim day.
In order to complete his really impressive challenge he will need to bring one of our 100L bags. Packed with the most essential gear for his adventure that can not get wet during the month at sea.
Our bag float fully packed with Jari on top and can be used as a safety raft in case of an emergency.
Jari has spent all winter living down in Siciliy, Italy training hard daily by filling up big canister of water to add extra weight and resistance in the water.

This is not the first adventure for Jari as he two years ago swam 328km along the east coast of Sweden, Oaxen to Öregrund. A 32 day long adventure where Jari only had to take one day off due to back problems. 

Plus last years attempt where he had to be rescued (2km from his intended destination Åland, Finland) as his navigation system shut down so he got off course and drifted south with winds and currents that pushed him further out on a stormy Baltic Sea.

Follow Jari’s 2nd attempt for the world’s longest unsupported swim across the Baltic Sea:

Jari Facebook @stockholmhelsingfors

Jari Instagram @swim_trek

Live GPS Tracking

We will also update our social media regularly about Jari Link.

Stay tuned for more information.

Comments are closed for this article!


“Longest No-Hands Motorcycle Wheelie” –Name: Elliot Gröndahl –Age: 30 –Currently: Pro motorcycle stunt rider –World Record: Longest No-Hands Motorcycle Wheelie –Where: Mantorp Park –Distance: 918,245 metre –Track: 1000-meter drag racing
Read More


Polestar x SUBTECH This is the result after having the Polestar design team working in close relationship with our R&D team to develop a bag where Design meets Function, Quality
Read More

Exploring extreme places

Free solo Tag along 70m/229ft down in to an old mine -Name: Anders a.k.a Free solo -Nationality: Swedish -What: Exploring extreme places -Age: 47 -Profession: Adventurer/Lecturer -Bag used: PRO DRYBAG
Read More

Solo Motorbike Traveller

Meet solo motorbike traveler Hanna 6 Years | 76 Countires | 90.000+ km Hanna is an enthusiastic, easy going girl with a burning desire to explore the world. So one
Read More