Not just ocean water. From Wikipedia:<p>> However, it appears that Bombard may have been misunderstood in regard to the possibility of survival without fresh water. Bombard has never argued that human survival is possible only by drinking seawater. On the contrary, he indicates that seawater in small quantities can prolong survival if accompanied, if rainwater is not available, by the absorption of liquids present in the bodies of fish.<p><a href="https://en.wikipedia.org/wiki/Alain_Bombard" rel="nofollow">https://en.wikipedia.org/wiki/Alain_Bombard</a>