Tropical wandering spider fishing - closeup, Santa Cecilia, Colombia

Checking with an expert to establish the family, but this seems behavior typical of a "fishing spider": sensing vibrations on the water surface with the front legs, followed by a run and bite attack.

Genus Trechalea, likely the most common species Trechalea macconelli according to Hubert Höfer from https://www.wandering-spiders.net/