Betterswim 1.0.0 for 1.16.5 is a release file of the Minecraft mod BetterSwim: The Herobrine Prank, made for Minecraft 1.16.5. It was published on July 5, 2021 and is 0.8 MB in size. For the full description, screenshots and every other version, visit the BetterSwim: The Herobrine Prank mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.