Since the moment he took it up, Masaki's life has become all about surfing. Sleeping or waking, it's all he thinks about, and he goes out to the beach to ride the waves rain or shine. One day, with a typhoon approaching, Masaki ignores Sho's attempt to stop him and...
And don't use seawater. 
Use fresh water, okay?
ولا تستخدم ماء البحر. استخدم ماءً عذباً، حسناً؟
Y no uses agua de mar.
Solo agua dulce, ¿bien?
Y no uses agua de mar.
Solo agua dulce, ¿vale?
E non usare acqua di mare.
Usa sempre acqua dolce, mi raccomando.
E não use a água do mar,
mas água da torneira, está bem?
И не морской водой. 
А пресной, ладно?