I found this photograph while browsing the Library of Congress catalog. Taken in July 1914, it depicts a group of men playing baseball in a large body of water off the beach. There’s no notation as far as an exact location, unfortunately. They appear to be playing ball in the ocean, but there are plenty of large lakes and other relatively-smaller bodies of water in existence large enough to not be able to see the shore on the other side. Regardless, the idea of playing baseball in the water, with other factors such as the tide, rocks, and seaweed, sounds like a fun and interesting twist on the game. Just keep your fingers crossed that your outfield doesn’t get eaten by sharks!
