CM-7 Duckie #19 Mystery Cache

Welcome to the Rubber Duckie geoart placed for Camp MIGO 2025 (CM-7).  The cache is NOT at the posted coordinates.  Solve the puzzle below to find out where it is.  The hides are placed along dirt roads - either bottle cap micros hidden in signs or camoflauged bottles with a tube inside to try to keep the log dry (big thanks to MrandMrsMan for the containers).  You may also want to visit nearby traditional cache GCBA4TC CM-7 What the Duck?

"Make Way for Ducklings" is a classic children's book by Robert McCloskey.  There is a statue installation dedicated to this story in what city's Public Garden?

You can validate your puzzle solution with certitude.