I love the OST and especially this one theme. But for whatever reason I couldn't find the OST with Ocean Sound Effects, so I made it myself!
The original picture is by Matt Vince (links to their socials further down in the description).

Hope you Enjoy!

Sources:

MUSIC:
Bubblaine | Super Mario Odyssey Music
   • Video  
Copyright of Nintendo

OCEAN WAVES:
Softest Beach Sounds from the Tropics Ocean Wave Sounds for Sleeping, Yoga, Meditation, Study
   • Softest Beach Sounds from the Tropics...  
Copyright of LoungeV Studio

GIF:
https://windowscustomization.com/2019...

The original art is by the artist Matt Vince.
Here's their website: https://www.mattvince.com/

I do not own the Audio or Video. This is not used for commercial use as I don't intend to ever monetize my videos. My channel is NOT an official Nintendo partner and I don't have a license to use these things commercially but I hope the noncommercial use is still allowed. If not then I will take it down immediately!