Instead of the Superbowl I recommend this as an Alternative

 

 

Sanchin Kata - Under Ice Waterfall - in Japan - Shihan Yasuhara

https://www.youtube.com/watch?v=Z1ueH5kfQ0A&t=1s

2013 JKA Karate Winter Training in Japan - Ice Cold Water

https://www.youtube.com/watch?v=Ohl6tkdJkTM&t=2s

 

Monk Meditates Beneath Ice-Cold Waterfall in Nikko, Japan

https://www.youtube.com/watch?v=DO5nJoviUMo

 

Karate Training Waterfall bathing Students 10

 https://www.youtube.com/watch?v=s8TBo3SHiCI