This is a wonderful mixed bag of everything from modern ship spotting to lots of historical footage. Currently he’s uploading maritime episodes of the Look at Life series, narrated and professionally produced, in beautifully scanned 16mm. Here’s an example; the harbor of Monaco sure doesn’t look like that anymore!
There’s also some delightful super-8 footage of life as a mariner in days long gone, like this one:
Well worth my time.