I have seen an ad on IG a few times for a product from Australia that attaches to the frame and uses your garden hose to flush the frame. Unfortunately I can not recall the name of the product, but it was well thought out and looked effective.I'm sure prolonged exposure to beach sand would contribute to corrosion, but this was the first and only time I've driven on the beach or the dunes. Still, when I got home I got under the truck and everything a good blast with the air compressor to get as much sand out of crevices as possible, and then gave it a good wash down with salt-away. I think that's going to do fine.