In my fictional town of Barberry Lake, there is a fictional lake called (wait for it) Barberry Lake. In this area of Arizona, there are plenty of lakes, though none with exactly the combination of features I imagine.
This one is a mile outside of the center of town. It has a beach, walking paths around half the lake, and a small dock where residents keep their boats for recreational boating and fishing. In the middle is a small island, large enough to block the view of anything behind it. It looks something like this.

The lake is a little over .5 miles in diameter, which gives it a circumference of 1.7 miles and makes it about 147 acres. It would take a motor boat going slowly about 20 minutes to circle the lake (5 mph, for no-wake, or 4.3 knots).
It looks a fair bit like Elizabeth Lake in Los Angeles County, which is 160 acres.

The beach and walking path is similar to Barberry Lake’s as well.

To the right of the beach is a parking lot and small dock. Something like this.

Most of the boats there are rowboats, kayaks, or small sail/motorboats. The only large one is an antique fishing boat, belonging to the Cohen family, one of the central families of the novel.
The Mosquito Fleet of Galveston – Out of Egypt
July 27, 2020 at 8:25 pm[…] Pam’s family, the Freemans, are black and from Houston, Texas. Pam’s grandfather sailed a boat that was part of the Galveston Mosquito Fleet. After Pam married Irving and moved to Barberry Lake with him, she had her grandfather’s boat towed to their new home. The family installed a gas motor and use it for outings in Barberry Lake. […]