I'm not an expert mountain biker, but I enjoy the occasional foray into singletrack and I know the basics of riding through sand: deflate the tires, unweight the front, and push your way through.
But what if you also need to clear 18 inch water bars? Going uphill, I didn't have the strength to bring my bike up and over the water bars while pushing through sand. I don't know if there's any more technique I can bring to this so I can accept that I just have to carry the bike or muscle it through on the uphill.
But is there something I can try going downhill? I tried a few things, but the result was front wheel plant in sand downhill of the water bar, with the resulting back end flipping up and over. (Yes, I was ready for it and landed on my feet while ditching the bike).