@jasonshick Way to go! You beat me to mentioning Wim Hof. How long have you used the Wim Hof method and what benefits have you found? I find his information and methods intriguing but haven't practiced anything other than cold showers sometimes.
@kus-knee I know what you mean about the difference between water and air temps. Big difference! I haven't seen the Vice documentary but did read What Doesn't Kill Us by Scott Carney and Wim Hof. It details some of Hof's history, early adopters of his method and how it helped them with diseases such as Parkinson's and the authors adoption of the Wim Hof method to climb Kilimanjaro
Another item I found fascinating and full of interesting stories and info was the podcast interview with Hof by Tim Ferriss: https://tim.blog/2015/09/07/the-iceman-wim-hof/
Also I might as well link to the aforementioned Vice documentary: https://video.vice.com/en_us/video/inside-the-superhuman-world-of-the-iceman/55a66a5c6d832c01483498c1
I have had good results so far, it really really sucks while standing there in freezing cold water, but after you are finished your body feels great
Thanks for the helpful links