
If you want to add a dreamy, beachside fantasy to your Sim’s look, get the Summer Festival Oops! Nails set. These medium-length oval nails feature a mix of watercolor gradients and glistening details. The nails are available in seven high-gloss and multidimensional finishes, each completed with subtle 3D decals like pearls, fairy wings, and drops of “water” for a fresh-out-of-the-sea effect. I recommend using these nails to complete your Sims 4 Swimwear CC look.
Follow these steps to install Summer Festival Oops! Nails on your Sims 4 game:
Download the mod file from the link above. Sims 4 mods typically come as .package or .ts4script files.
Open your Sims 4 Mods folder. The default location is: Documents/Electronic Arts/The Sims 4/Mods
Place the downloaded file directly into the Mods folder. You can organize mods into subfolders up to one level deep.
Launch The Sims 4 and go to Game Options > Other. Make sure "Enable Custom Content and Mods" is checked.
Restart the game if it was already running. The mod should now appear in your game.
Important: Always back up your save files before installing new mods. After Sims 4 updates, mods may need to be re-downloaded or updated by the creator.
Platform
The Sims 4 (PC/Mac)
Pro tip: If a mod stops working after a game update, check the creator's page for an updated version. Broken mods can cause the game to behave unexpectedly.
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Published
December 4, 2025
Source
MustHaveMods.com
Last Updated
June 11, 2026