This is a Wednesday battleship puzzle. The fleet are the five ships on the bottom, and they are allowed to reflect and/or rotate before placement in the grid.
It looks like the 1×4 Battleship is “LOST” at sea. 🙂
If you haven’t figured it out, or just want to check, the theme is (rot13ed): chmmyrf jvgu grgebzvabrf
I think this is my first nonsquare grid, but it was either that or putting one ocean cell, which I like even less into the puzzle. Hope you enjoy 😀