County leaders joined together to open the new Sensory Treehouse at the Gwinnett Environmental and Heritage Center in March. Made of weathering Corten steel, this treehouse offers a unique experience for people with mobility disabilities to enjoy the tree canopy. It features a 340-foot accessible steel walkway with three expanded nodes, surrounded by a viewing and activity platform and a high-hanging hammock.

After years of planning, the updated Blue Planet film debuted at the Sensory Treehouse, emphasizing environmental education and sustainability. The $4.7 million total cost of the treehouse and film projects were funded by the 2017 Special Purpose Local Option Sales Tax program, known as SPLOST.