The Santa Ana River offers diverse fishing opportunities across its nearly 100-mile course from the San Bernardino Mountains to the Pacific Ocean near Huntington Beach. The river flows through varied landscapes including high desert areas and urban/suburban regions of Orange, Riverside, and San Bernardino Counties. Anglers can find a range of freshwater fish species throughout the river system, with fishing conditions and target species varying widely between the upper mountain sections and the lower urban stretches. The river provides an accessible fishing destination for Southern California anglers of all skill levels, with certain sections being particularly productive during specific seasons.