That's an actual thing, apparently. Small amount of electricity in the water for a tingly experience. Some people like it, some people don't, and some people shouldn't even try it (like if you have a pacemaker or history of heart murmurs) just in case.
Poor Eldridge isn't technically even a destroyer, she's a destroyer escort, i.e. a frigate. Smaller than a destroyer and much slower. :<
(Also possibly 27% cuter.)