5.0 star · Extra Difficult Point to Point

Happy Isles to Merced Lake

Mariposa County, California

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Trail length

19.9 km

Time

7 h 49 m

Elevation Gain

1093 m

"An epic challenge to remember from the heart of Mariposa County"

The Happy Isles to Merced Lake is a 19.9 km trail that starts in Yosemite Valley, Mariposa County, California. Based on our data, the trail is graded as Extra Difficult. For information on how we grade trails, please read measuring the difficulty of a hiking trail on hiiker. Also, check our latest community posts for trail updates.

This trail can be completed in approx 7 hrs 49 mins. Caution is advised on trail times as this depends on multiple variables. For more info read about how we calculate hike time.