There are 2 kinds of cold plunge tubs: with and without chillers. The non-chiller products are sometimes called ice baths. Ice is included towards the water to chill it down. Iceman Wim Hof within an ice bath in 2007 Some athletes use a method called contrast water therapy or contrast http://www.freebusinessdirectory.com/search_res_show.php?co=346247&s=UY2149EX04147GO0610NR1556ES05WO12&p=1&n=10&f=