How can I make a hillside slide?



My fiance and I want to make a hillside slide going from our driveway down to the flat lot where the kids play. From the driveway to the bottom of the hill is 32 feet. I wouldn't want it to be really fast. We were think of building it out of wood and then coating it with something like what I have in the picture. Would that work? Or does anyone have any ideas? Thank you!

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That is a lubricant primarily used on door hinges, patio door rollers, garage door hinges and rollers, etc. Build it out of plywood making sure seams and joints are flush. Cover it with 6 mil plastic or blue plastic tarps. Wet it down with water and squirt Dawn dish liquid, shampoo, all over. Sliding will spread it around. Kids have fun and get clean at the same time. Just hose it down for next time.
https://www.pinterest.com/pin/488218415828559448/
Please don't poison your kids. A plastic tarp and water are all you need.
Try using pool liner material. You just cut to size, lay it down and they're ready to slide. Just rinse it off, dry it and roll it up for next time.
slide and wood are not good combination - think splinters in uncomfortable places. You may want to consider concrete with the coating used for inground pools. With a 32 foot run, you can even add some twists.
Is the slide meant for water only, or just a simple slide? How about a lot of pine needles strewn down a path you prepare down that hill, then use slick snow sliders. Worked great for us and the idea came from my grandfather, who built one for us at their home in the hills. He then made wood sliders for us to sit on, with small seat and cross boards for feet.
For regular slide just the wood and 6 Mil plastic. Any lubricant would just be messy on the clothes and body.