For some reason I've really started to enjoy watching more or less silent travel journeys on Japanese ferries. So much I'm planning to do a few trips myself.
That's a great one too! I think I've pretty much watched all that channel as well. It's a great quiet channel to have your coffee in the morning.
There's also a couple variations of the solo Japan name which have varying quality. I don't even know what the original is anymore but I grew up riding ferries so I'm partial to the ferry heavy channels.
https://www.youtube.com/@SoloTravelJapan