Fishing-themed slots can shift from the easy calm of a lake to the restless...

https://wiki-byte.win/index.php/Why_a_Fishing_Theme_Gives_Designers_So_Many_Ready-Made_Symbols

Fishing-themed slots can shift from the easy calm of a lake to the restless feel of open water. Look for familiar details like a rod or float, and a fisherman whose personality—laid-back, proud, or quietly competitive—helps set each game’s tone.