Swim streamer

Noam Yaron of Switzerland swimming between two navigation lines and over a swim streamer during his assisted swim from Corsica to Monaco in the Mediterranean Sea between 10-15 August 2025

Swim streamer used by Diana Nyad in the Straits of Florida between Havana, Cuba and Key West, Florida

On-the-water swim streamer with a lane line utilized by the Epic Swim 2020 swimmers in a relay crossing of Lake Michigan

underwater swim streamer, photo courtesy of Christi Barli in the Straits of Florida

night swim streamer at night with red LED lights on the cloth

Hoist and structure of the underwater swim streamer, photo courtesy of Christi Barli in the Straits of Florida

underwater swim streamer photo courtesy of Christi Barli

underwater swim streamer, photo courtesy of Christi Barli in the Straits of Florida

night swim streamer photo courtesy of Christi Barli

noun - A swim streamer (or sarashi or さらし (in Japanese) is a piece of cloth or illuminated material that is runs underneath an open water swimmer or parallel to an escort boat for the benefit of guiding and protecting an open water swimmer during an ocean swim or channel crossing.

Types

• underwater swim streamer
• night swim streamer with LED lights
• On-the-water swim streamer (e.g., lane line used in a swimming pool)

Structures

The underwater swim streamer or night swim streamer cloth or material is used during daytime hours; the material is illuminated during the nighttime hours for easier viewing. The navigational aid is hoisted from the escort boat and anchored in the water so the cloth or material runs 1-3 meters underneath the surface of the water.

Purposes

The swim streamer can serve to help guide the swimmer and/or as a shark deterrent if the swimmer swims directly above the submerged swim streamer.

Usage

Diana Nyad used a swimmer's streamer during her swim from Cuba to Florida.

Advantages

• The marathon swimmer can look straight down in the water at the swim streamer on every stroke in order swim straight (i.e., parallel to the escort boat).
• The swimmer can also conserve energy and improve their navigational course by not constantly looking up at the boat, especially during the night.
• Sharks can be deterred by its proximity to the swimmer.

Use Around The World

• A swim streamer has been used in the Tsugaru Channel and the Sado Channel in Japan to protect against sharks and other marine life and is accepted as optional equipment by the Tsugaru Channel Swimming Association.
• A streamer was used in America by Diana Nyad during her Xtreme Dream swim attempts across the Straits of Florida in 2011.
• A weighted streamer was used by Ben Lecomte in The Longest Swim, a transpacific stage swim across the Pacific Ocean scheduled to start in May 2018.

Video of Swim Streamer in Tsugaru Channel and Sado Channel

The swim streamer and the pole of the swim streamer can be seen in the videos of the Tsugaru Channel and Sado Channel crossings.

Synonyms

Swimmer's streamer, Swimmer's guide, sarashi (さらし in Japanese), underwater streamer, streamer, night swim streamer, underwater swim streamer, on-the-water swim streamer

On-the-surface Swim Streamer

Epic Swim 2020 members Nick Hobson, Jon Ornée, Dave Ornée, Jeremy Sall, Matt Smith, and Todd Suttor, filmed by Michael Dillon, used an on-the-water swim streamer while swimming across Lake Michigan.

External links

• Shark Incidents in California
• Since When Have There Been Shark Attacks?
• Bartłomiej Kubkowski Is Pulled After 159 km of the 170 km Ultra Baltic Swim
• Try, Try, Try, Try Again - Bartłomiej Kubkowski to Attempt the 170 km Ultra Baltic Swim Tomorrow
• From Corsica To Nearing Monaco – How Noam Yaron Swam 102 Hours
• Corsica to Monaco, a 180 km Odyssée Méditerranée by Noam Yaron
• Old-School Shark Policy from Decades Ago
• NYAD The Movie - Ask About Diana Nyad's Cuba Swim
• The NYAD Series, Part 1 – The Swimmer-Coach Dynamic
• 1875 To The Present, How Has The Sport Evolved?
• The Year of Living Ep!cally
• The Year of Living Ep!cally
• Swimming During War Time And In Modern Times
• What Is A Swim Streamer?
• Streaming Straight In The Open Water
• The Shark Diver Controversy In Ocean Swimming
• Why Are Two Boats Used To Cross The Tsugaru Channel?
• It Takes A Team And All Day
• Chris Kraus, Brian Ross, Rick Gaenzle Cross Tsugaru
• Streaming Along Marathon Swims
• Swim Streamers In Open Water Swimming
• Stephen Redmond Achieves The Oceans Seven
• Swim Streamers In Open Water Swimming
• Swimming Conditions In The Straits of Florida
• Protection Against Stingers Splits Down The Middle
• Open Water Swimming
• World Open Water Swimming Association
• Diana Nyad Official Website
• The Shark Diver Controversy In Ocean Swimming
• Kim Chambers Loving Her Journey
• Things We Ponder In The Open Water
• It Is Not A Transponder, It Is A RadBand
• Is There A Doctor On Board?
• The Longest Swim, A Scientific Expedition
• Where Are They Now? Ben Lecomte
• The Longest Swim Is Getting Closer
• AltaSea, Where Ocean Innovators Work Together
• Ben Lecomte Going With The Flow Across The Pacific
• AltaSea, Where Ocean Innovators Work Together
• The Longest Preparation For The Longest Swim
• Heading To The Longest Swim
• The Science Behind The Longest Swim
• XPRIZE Ocean Initiative's Big Ocean Button Challenge
• Tsugaru Channel Crossings - Channel Aspirant Information
• The Next Mountain? Across The Pacific Ocean
• The Longest Swim Official Website
• Sea Bull Crosses The Tsugaru Channel
• Flying Freestyling Fast In The Gulf Stream