Arroyo Seco
1) Willowcreek Bridge to Arroyo Seco Picnic Area
| Difficulty | IV(V) |
| Length | 3 mi |
| Avg Gradient | n/a |
| Gauge | Arroyo Seco Nr Greenfield Ca |
| Reach Info Last Updated | February 25, 2026 |
The Arroyo Seco drains west out of the Santa Lucia mountains and Ventana Wilderness into the Salinas River at Greenfield. This section is known for its very pretty gorge and for the 3 mile hike required to get from the take out to the put in.
Season: Winter and spring rainstorms can bring flows up into the thousands of cfs, but as soon as the rain stops, flows drop quickly. The boating window can be from a day or two up to a week. During periods of steady or frequent rains, flows can remain at boatable levels for longer periods.
Christina Starr contributes:
'Arroyo Seco is one of the top class IV runs in California. Do not bother with the brushy lower sections. All the action is in the Gorge above the picnic area.
To reach the put-in, park at the upper parking lot and carry your boat around the locked gate across the dirt road. It is about a three-mile hike; not too bad, though. Put in at the Willow Creek packbridge.
The first two miles are class IV with one class V. You can scout the major rapids from river left, right after Santa Lucia Creek enters from the right.
First two miles are in a spectacular gorge and the rapids are mostly class III-IV with one class V: 'MUCHOS CAJONES.' '
Other boaters report that the lower sections are very scenic and worthwhile despite brush in some areas.
Other Information Sources:
Los Padres National Forest: Monterey Ranger District (King City, 831-385-5434) Campground Kiosk: 831-674-5726
CA-Creeks-Arroyo Seco Online guidebook
Videos:
...Feb 20, 2026
Providing some high water beta since I haven't been able to find much about it above 500 cfs.
Abel and I had a great lap starting on Santa Lucia. The gauge read between 1450 and 1390 cfs while we were in there. The water level was at 7 ft on the stick gauge at the bottom. At these flows the main gorge is continuous and it goes by quick, but it's a good time while you're in there! The pinch after Muchos Cajones forms a sticky hole. Definitely try to hit that with momentum and a good boof stroke. I'd classify the gorge as class V at these flows, but we were in slicey boats and everything went fine. It's just continuous with a few meaty holes. Not sure I'd want much more water in there.
I've run it between 800-900 cfs and that is a very fun flow. Lines are clean, boofs are glorious, there are eddies between rapids, and no mank. Probalby class IV/IV+ at those flows (I know other writeups say it's V above 600 cfs, but my experience at 850 cfs felt solidly in the IV/IV+ category). Maybe a half step up from Chamberlain, a half step down from slab creek.
Here's a video at 1400 cfs from our trip to share with other boaters looking for high flow beta: https://youtu.be/\_2tzDBA7ckQ?si=\_Iu5fDpgSoxac-Kw
Apr 10, 2025
Friends and I have run Arroyo twice so far this Spring, planning on going again this weekend. Always one of my favorite runs, but the road was washed out a couple of winters ago and has been closed so this has been our first opportunity in a while.
The big change is that the bridge at the put in (horse pasture bridge) collapsed. Based on what the ranger said, doesn't sound like it will be replaced, or at least not anytime soon. Not really a big deal, you can just put in right below it... not quite as nice of a little put in spot but totally fine.
The Gorge is all clear of logs/wood, etc. and the lower section is relatively brush free compared to past years. Water is beautiful, spring weather was beautiful and the gorge is as fun and beautiful as ever. Great to be back!
Feb 19, 2019
I changed the flow range from 8-9 feet to 4-6 feet according to the comment from cacreeks.com http://cacreeks.com/aro-seco.htm and after our visit at 8 feet in February 2019, where we had a raging high river (around 1500 cfs). Apparently, after the floods in 2017, the gauge changed.
Just that you don't wonder about the different information in the text and in the table.
