Arroyo Seco

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