Kosir's Whitewater Rafting

Kosir's Whitewater Rafting Wisconsin's oldest, family owned, whitewater rafting outfitter, since 1975. Rafting the Peshtigo & Menominee Rivers! Camping, rafting, tubing, and kayaking!
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The perfect spot for family adventures, scout outings, work trips, and more! CHEERS TO 50 YEARS! Our season runs April through September. Our whitewater adventures will take you through pristine Northwoods forests on a wild Wisconsin river! The Peshtigo River is the longest stretch of, commercially run, continuous whitewater in the Midwest. The mighty Menominee is located on the border of Wisconsi

n and Michigan's Upper Peninsula with class four whitewater, and breathtaking views! Full campgrounds, with RV hookups, also available at our Peshtigo River location! Bar/restaurant located right on site! Cabins are also available - rented thru Rapids Resort!

There’s not many days where you get perfect water for tubing AND funyaks! Join us on the water this weekend for a funyak...
06/13/2026

There’s not many days where you get perfect water for tubing AND funyaks! Join us on the water this weekend for a funyak adventure or a fun river float! 🌊

Looking for an adventure this Memorial Day weekend?! We’ve got you covered! Paddle with us on the Peshtigo, Mighty Menom...
05/22/2026

Looking for an adventure this Memorial Day weekend?! We’ve got you covered! Paddle with us on the Peshtigo, Mighty Menom, or both! 🌊

Book your spot at www.kosirs.com or over the phone at 715-927-3608.

Menom season is here! 🌊 😎 Book online at www.kosirs.com or over the phone at 715-927-3608!
05/17/2026

Menom season is here! 🌊 😎

Book online at www.kosirs.com or over the phone at 715-927-3608!

You know your guide is in concentration mode when their tongue is out 🤣Join us for a Sunday Funday paddle tomorrow at 10...
05/02/2026

You know your guide is in concentration mode when their tongue is out 🤣

Join us for a Sunday Funday paddle tomorrow at 10:00 or 1:00 (or both if you’re feeling really adventurous)!

Call 715-927-3608 to reserve your spot! 🌊

The perfect water level for 2-3 person rafts 🌊 Peshtigo trips tomorrow at 9:00am and 12:00pm still have availability! H...
05/02/2026

The perfect water level for 2-3 person rafts 🌊
Peshtigo trips tomorrow at 9:00am and 12:00pm still have availability! Hop on while the waters still up!

Thanks for paddling with us! 🌊
04/23/2026

Thanks for paddling with us! 🌊

65 degrees on Saturday AND high water?! Mother Nature is spoiling us 😍🌊 Get here and enjoy the waves while the last! Pes...
04/23/2026

65 degrees on Saturday AND high water?! Mother Nature is spoiling us 😍🌊

Get here and enjoy the waves while the last! Peshtigo trips are going out daily!

Call to book, or reserve online at www.kosirs.com!

This is what the Peshtigo is all about! 🌊 BIG rafts, BIG waves, BIG fun, & the BEST memories!Don’t wait! Get your crew t...
04/21/2026

This is what the Peshtigo is all about! 🌊

BIG rafts, BIG waves, BIG fun, & the BEST memories!

Don’t wait! Get your crew together and hit the river while levels are still up!

Book now at www.kosirs.com or over the phone at 715-927-3608!

📸: Michael Koppenhoefer

🎸🌊 THANK YOU, PESH FEST CREW! 🌊🎸We seriously couldn’t do this event without all of you. Every single person who came out...
04/20/2026

🎸🌊 THANK YOU, PESH FEST CREW! 🌊🎸

We seriously couldn’t do this event without all of you. Every single person who came out, bought a wristband, supported the event, helped out, and brought the energy; you’re what makes Pesh Fest what it is.

Thank you to all the bands for rocking Friday & Saturday night! A huge thank you to all of our amazing sponsors for helping make it all happen, especially Rutabaga Paddlesports and Gross Inspection Services LLC for their continued support year after year.

Maybe next year the Peshtigo will be a bit more tame! 😅

⬇️ Drop your best Pesh Fest pic below ⬇️

🚨MAJOR HIGH WATER ALERT +45🚨 The Peshtigo is high and absolutely roaring! The best part? You’re in good hands! Our exper...
04/14/2026

🚨MAJOR HIGH WATER ALERT +45🚨

The Peshtigo is high and absolutely roaring!

The best part? You’re in good hands! Our experienced guides keep it safe and seriously fun from start to finish! 🌊

Book now at www.kosirs.com or at 715-927-3608!

📸: Michael Koppenhoefer

Address

W14073 CR-C
Athelstane, WI
54104

Telephone

+17159273608

Website

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