Bnm try container ships.
One way would be.
Ship UK▸ to USA East Coast: train to West Coast: ship Japan/China: ship Australia Darwin the start of the Ghan.
You may even get one direct to Australia from UK.
Agree, a friend of mine has made numerous voyages by cargo ship and highly recommends this mode of transport.
Cabin-----excellent, would be called "super double emperor class" or some such nonsense on a cruise ship.
Food------Limited choice but of excellent quality, included in fare.
Drink-----Again limited in choice but very cheap, had to be paid for at "duty free" prices, not pub or bar prices. Soft drinks
FOC▸ .
Entertainments and communications limited to satellite TV, radio, library, DVDs, and very expensive sat phone.
Reasonably green. Ships use a lot of low grade and polluting heavy oil, but the EXTRA fuel used by adding a passenger is negligible.
Most voyages were between the UK and the USA, but included one direct voyage to Australia.
One voyage was in truly extreme weather, with the shipping weather forecast describing the sea state as "phenomenal" The very experienced Captain looked worried, and the officers kept checking the lifeboats.
The crew were observed to be praying for deliverance.
Other voyages have been less exciting.