It is an empty world, with roads named after famous simmers, mostly their Youtube channels. You can download it here
https://www.thesims3.com/assetDetail.html?assetId=9540585
For more information that I forgot to include in the description, mainly what packs it uses, click here
https://at.tumblr.com/damienf519/sky-beach-my-valentines-day-present-to-the-sims/e6la4ol8aazq