Cottonmouths thrive in wet, tangled landscapes, and late summer can bring more activity in the places where people least want a surprise encounter. Ocala National Forest, UmatillaOcala National Forest near 40929 State Rd 19 in Umatilla, FL 32784 is one of the most visited natural areas in Florida, and its spring-fed lakes and river systems make it prime cottonmouth territory all summer long. Understanding the basin as a whole helps explain why sightings here are so reliably frequent throughout the late summer season. Late summer afternoons near any water feature in this region almost guarantee a sighting for attentive visitors willing to slow down and look carefully. Audubon, which manages the sanctuary, has documented cottonmouths as a consistent presence throughout all seasons, with late summer bringing the highest recorded activity due to peak prey abundance and warm water temperatures.