Slip n' slides are a great way to enjoy your summer afternoon — but if you're over age 7, those dinky store bought slides just aren't going to cut it.

Using recycled cardboard, pallets and a large roll of plastic, Derek Salamanca took matters into his own hands, and built the ultimate DIY slip 'n slide.

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The track measured 300 feet in length, and featured a totally not-dangerous-at-all jump. For good measure, he added a wall-ride and ended with a drop-off into a clean river.

At the end of the video, Salamanca goes into detail on how he built the water slide, but also states that a number of people were injured while riding it, so we don't suggest trying it unless a trip to the emergency room sounds like a fun summer vacation.

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