This is what my buddy Dave had to say about the canyon:
Just a quick update for people looking to bomb down Eaton Canyon in Southern California:
Went down Eaton on Saturday, after doing it the day before to set things up for our trip. On friday, we trimmed the yuccas back, cut out as much of the poison oak as we had time to, and set up a few retired climbing ropes as fixed handlines for the sketchy scree descent for the final few hundred feet before meeting the water, and then proceeded through the canyon. On Saturday, we went back as a group of ten, almost all of whom had gone through extensive canyoneering training but were largely inexperienced, with two experienced canyoneers (myself and Leo) leading the trip. I have done Eaton at least 20-25 times the past five years, and I still hold that it is hands down the best canyoneering route in SoCal, but conditions there currently are very different from how they were a year ago, and which were themselves very different from the year before that. Instead of giving you a play-by-play, here are a few key points for anyone else who is thinking of hitting it up in the near future:
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The deposited sand is slowly migrating down the canyon. The fires that we had a couple years ago loosened the soil around the canyon, and then the subsequent rains filled in almost all of the upper drops to the point that they were generally about six inches deep as of last may. Since then, they have been slowly emptying back out from the top down, which means that most of the small jumps and slides that were dangerously shallow before can now be comfortably done with the canyoneer only lightly hitting bottom before continuing on. This is good for most of the intermediate slides, but all of the big jumps are no longer even remotely safe, as I will mention later.
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More novices are learning about Eaton and getting in over their heads. As a party of ten, you generally are the people in the canyon that people groan when they run into and have to pass by. On Saturday, our group of ten passed two other parties. I am not saying this to brag about how we were going abnormally fast, because we weren't; it took us a little more than nine hours to get from car to car. Basically, word is spreading about how awesome this canyon is, and people are then telling their friends, and people are forgetting about the fact that this canyon is a physically demanding and potentially dangerous adventure if those that go down it are not properly prepared and in good shape. The first party that we passed were nice people, but half the group had never rappelled before and were terrified of both the height and amount of water on even the first real rap, and had not brought any headlamps for the five of them, which made it obvious at even 1pm in the afternoon that there was no chance that they were going to make it out by nightfall. We gave them one of our headlamps, and then called search and rescue at around nine to give them a heads up that the slow group might still be in the canyon, only to find out that they had already called in to get rescued and S&R was in the process of helping them even before we called. The guy I talked to said that they were all fine, just scared and stuck with almost no light in the dark, but I am not sure what actually happened to them. To put it another way, this canyon rocks, but taking random people with no training and no endurance is negligent, dangerous, and ultimately expensive when you include the chopper ride out.
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The water level is very, very high. I have never seen anywhere near this much water in the canyon this late in the year, and this makes everything both more dangerous and more amazing to do. While a full wetsuit is still necessary (or at least preferable), the water is definitely starting to warm back up, and all of the raps are still doable, but you want to be sure to rig them right. For the first big rap, rap off of the bolt instead of the tree, to miss most of the water. For the second rap, stay left to stay out of the heaviest waterflow. For the last rap, be prepared to get drenched no matter what. THE SECOND-TO-LAST WATERFALL IS NOT ONLY NOT DEEP ENOUGH TO JUMP, BUT IT IS ALSO 100% POTENTIALLY DANGEROUS TO RAPPEL. In the past, we would always jump this one, so I had never actually rapped it before. The shape of the chute, however, funnels the water without breaking the stream, which causes it to accelerate rapidly in a thick, steady stream even before going into freefall. This means that if you step into the stream 20ft into the rappel, the water will be going at least 30mph, sweep your feet out from under you, and send your body directly into the waterflow, where you will get pummeled as you try to get your feet back onto the dry terrain on either side of the chute. If you rap this fall, stem above the fall on either side, and then eventually move to your right (looking uphill) to avoid getting nailed by the water. I rapped this and stayed dry, the second guy in our group slipped once, fell into the stream and was hit so hard that he was unable to regain his feet at all, and described the experience as getting "pounded in the head with 100 pound blocks of ice". I then hiked back up, set up a redirect to get the rope a little more to the side, rapped, stuck my foot in the water to see how bad it was just in case one of the other kids did it, and subsequently ate it into the waterfall and got my butt kicked by nature for a solid thirty seconds before getting my feet back and stepping out of the waterflow, rapping down, and then announcing to the rest of the group that we were going to walk around. The waterfall looks way tamer than all of the other rappels, but don't be fooled- even with a fireman's belay, this rap is sketchy. Fun, maybe even awesome, but definitely not something that you would want to put anyone but an extremely competent canyoneer on without taking an unnecessary risk. Fortunately, the second guy in our group (who was also named Dave) is a badass and was completely unfazed by this, so we continued on.
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BOTH OF THE BIG JUMPS ARE NOT EVEN CLOSE TO BEING DEEP ENOUGH TO JUMP OFF OF, AT ALL. A few years ago, my friend Rory and I went for a speed run of eaton with two forty foot handlines to leave on the first and last rap and didn't even bring harnesses and ran through the canyon, jumping everything, and making it car to car in just under three and a half hours. Now, if you try to jump either of the big falls (the second rap, or the second to last rap), you would be lucky to just come away with a couple of broken bones. The second rappel, which is a bolted boulder in an alcove immediately after the 15-20ft slide following the first big waterfall, is now over about four feet of water, instead of the 20ft of water that you could aim for two years ago. This is an improvement over the six inches of depth in the same spot last year, so if this trend continues it hopefully it could be as little as another year or two before this one is jumpable again (as a side note, this jump is waaaay sketchier and more dangerous than the second to last one even in optimal conditions, but now it is simply not an option). The infamous waterslide at the second-to-last waterfall now terminates in just over six feet of water, which is especially bad when you consider that the waterfall is breaking the surface tension. This means that anyone who goes off of the slide, or any of the three cliff jumps above it is going to leave in an airborne stretcher unless conditions change drastically. The sad news here, is that unlike the second rap higher up, this rappel was actually about ten feet
deeper last year, and was totally jumpable, which means that the sediment from higher up in the canyon is slowly being carried down, which means that in all likelihood this fall will probably not be jumpable for at least a few years if not longer. I hope I am wrong in this, but all of the sand higher in the canyon just doesn't have anywhere else to go. There are two other short raps towards the end that used to be jumpable that are not anymore, but you will be able to spot them pretty easily by the webbing.
Anyway, although doing the canyon twice beat the crap out of my knees, the conditions currently are pretty unique for Eaton in May, and I strongly recommend it to anyone who possesses all of the necessary ingredients to do it without almost killing themselves or their friends. Rock on, be safe.
-Dave