Easy fix for tile lines showing? - Lemmy.World

This is the same tile that existed when we moved in 10 years ago. Over the years, our kids have splashed water out while playing in bathtub and some toilet accidents… it has caused some areas to start showing hairline cracks revealing the big tile is really just a bunch of small ones placed together. Is there any easy fix to cover this somehow, or will my only real option to redo the entire floor? Thanks!