How to properly fall into water from great height

[Jester]

Well there are cases known of people surviving jumping in water from great height without any means of deceleration. Feet-first nail is the best approach, because you will have a longer braking path going under water lessening the strains put on your body and giving the most protection to head and upper chest (the most critical parts of the body). If you land horizontal you immediately stop. You will always suffer broken bones throughout your body and severe internal injuries.

A rare few parachutists who had no chute unfold (not even partial) survived crashing into trees and bushes. Water should be even more lenient.

As the perennial skeptic, do you have any confirmed cases of people surviving high altitude drops into open water with no mitigating factors (parachute, plane pieces, etc...)?

My understanding is that water is not more lenient than trees and bushes. Branches help break your fall, and trees are at least slightly elastic, as is the ground. Water is incompressible - upon impact with your legs, they will be forced upwards with enormous force, killing you instantly. The fact that it becomes much more forgiving a second later does not help you survive the initial impact, which I can only imagine would be as fatal as a similar impact onto solid concrete - maybe worse.

-Jester