Diana V.
8/18/2025
Our family had a great time on our three-day, two-night trip with Sierra Mac. Our guide, Zack, navigated the river with such ease and skill. He was knowledgeable and struck just the right balance...
Sierra Mac River Trips
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(116)
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27890 State Highway 120
Groveland, CA 95321
Sierra Mac River Trips, founded in 1965, is a family-owned outfitter based in Groveland, California, just 15 miles from Yosemite's northwest entrance. As the first commercial rafting company on the Merced and Tuolumne Rivers, they specialize in providing thrilling rafting adventures ranging from mild to wild, including Class IV and V experiences.
With a team of experienced guides, Sierra Mac offers a variety of single and multi-day rafting trips on the Main Tuolumne, Cherry Creek, and Merced Rivers. Their commitment to preserving the rivers and sharing their passion for the outdoors has made them a popular choice for adventure seekers looking to escape the crowds and connect with nature.
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Reviews
5.0116 reviews
Armon E.
6/3/2025
Unforgettable Adventure on the Tuolumne River with Sierra Mac! Sierra Mac is a family-owned operation, led by Marty and Tom and it shows. Everything felt personal, intentional and deeply rooted...
Barry K.
7/13/2025
These are some of the world's best river guides running two sections on some of the world's best river trips. The Tuolumne is The California Classic. Just tremendous. And Cherry Creek: Well, what...
david w.
7/14/2025
This team is the best you can hope for. Provided us with all the info and basic training we needed, plenty of opportunities for questions, and made it crystal clear what a serious undertaking we...
Kara S.
7/14/2025
We did an overnight trip with Sierra Mac, and it was a truly great experience! Ray, Jordan, and Junior were amazing guides. They were really kind and clearly know the river so well. Running the...
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