Bennett’s Terraqueous Gardens sits in 18 acres of parkland owned and operated by the Fon du lac Park District of East Peoria. Within the park grounds, there are hiking trails, a pond, and an observation shelter overlooking the gardens.

Bennett's Terraqueous Gardens is a high-quality seep that lies at the base of deeply dissected bluffs and hills bordering the east side of the Illinois River. The seep community is usually saturated by groundwater that emanates at or near the base of a hill comprised of glacial till. Narrow spring runs flow in rivulets through the seep.

Characteristic herbaceous plants found in the seep include swamp thistle, bottlebrush sedge, spotted Joe-Pye weed, fowl manna grass, swamp goldenrod, skunk cabbage, and marsh marigold. A boardwalk provides an opportunity for close views of this interesting wetland. The seep is named in honor of Mr. John Bennett, who donated the property to the Fon du Lac Park District.