Treadwell divided his time between Big Green, a grassy area on Hallo Bay ideal for bear sightings, and Kaflia Bay, a dense and wooded area known as the Grizzly Maze, offering closer bear encounters.
His interactions with the bears, documented on film, often involved risky proximity, including touching and playing with bear cubs.
Despite persistent warnings from park authorities, Treadwell persisted in his pursuit to get up close and personal with the bears.
Ultimately, this led to him meeting his demise.
In October 2003, Treadwell and his girlfriend, Amie Huguenard, were camping in the Grizzly Maze beyond the usual season when they encountered a bear during its feeding period.
It is dangerous for humans to be nearby during this time, even more so for Treadwell with his lack of defensive measures against the predator.