Productive areas are typically found near structural features that provide current breaks and ambush points. Confluences where Arroyo Yohazá meets other streams or the main river are always worth exploring. Deep pools adjacent to undercut banks and large fallen trees hold large dorado and catfish. Riffle-and-pool sequences in the middle sections are excellent for active dorado and pacú. Areas with overhanging vegetation that drops fruit or seeds into the water are prime locations for pacú.