This cache is located in a beautiful little garden with flowers and small fruit trees. It is not easily visible from the street so, interestingly, many locals do not even know about it.
It is located next to the Robert Long House, built in 1765 -- the oldest known surviving urban residence within the city of Baltimore. Today, it serves as the home of the Fells Point Preservation Society, who saved it from demolition in 1969 by purchasing it and restoring it.
The garden is maintained by a group of wonderful volunteers. You might meet them while they take care of the plants. Feel free to say hi.
Growing all these plants requires a lot of water. When it rains, water runs down the roof and then flows through well engineering pipes. One of them should guide you to the cache.