Flat River Reservoir, also known as Johnson Pond, is a 650-acre freshwater lake located in Coventry, Rhode Island. The reservoir offers diverse paddling experiences, with distinct areas suited for different preferences.

The main access point is Zeke's Bridge Fishing Access, which has a concrete boat ramp and parking for 20 vehicles. From here, paddlers can choose between two main routes. Heading south under the bridge leads to Reynolds Pond, a quieter area with a winding shoreline lined by white pines and cedar swamps. This section is largely undeveloped as part of the Big River Management Area. For a longer trip, paddlers can continue under I-95 to explore Big River.

Alternatively, paddlers can head north into Johnson Pond and Flat River Reservoir proper. This area tends to be busier, especially in summer, with many powerboats and personal watercraft. The shoreline here is more developed, lined with houses.

Wildlife enthusiasts should keep an eye out for herons, egrets, and other waterfowl. The Big River Wildlife Management Area, which borders part of the reservoir, is home to deer and foxes.

Anglers will find the reservoir stocked with northern pike. Other fish species include largemouth bass, smallmouth bass, chain pickerel, yellow perch, and pumpkinseed.

Facilities at Zeke's Bridge include a boat ramp and parking, but no restrooms or other amenities are mentioned. The site is closed from half an hour after sunset to 5 am, except for fishing and boating.

For those interested in local history, the nearby Old Coventry Mill offers insight into the area's industrial past. Anthony Village, with buildings dating to the 18th century, provides a glimpse into earlier eras.

Paddlers should be aware that the reservoir can become busy with motorized craft, especially in the northern sections during summer months. Early mornings typically offer calmer conditions for paddling and fishing.