Under the Sea ~ Journey of The Little Mermaid one of the first classic dark rides built in the past decade has been a classic example of WDI going in and updating an attraction they feel is not perfect. This transformation actually started with The Little Mermaid ~ Ariel’s Undersea Adventure, which is the same attraction but in Disney California Adventure, that first opened with the Ariel figure in the Under The Sea scene with hair that looked like a soft serve twirl on her head and was quickly changed to a more boxy hair style that currently is still the standard for that figure. With this latest upgrade the lighting has been adjusted in the Under The Sea scene to make it more of a dark scene so when each fish is called out during the song it is showcased by its own spot light. But they more notable change again seems to be all about the hair, moving from the plastic hair to a more natural look.
But really the best way is just to see it. This first video is from when the attraction first opened.
This video is the current state of the attraction.
Before I sign off, I had to include this because it is just to much fun to pass up, here is the Main Street Electrical Parade in just over 30 seconds.