Marine

A couple of years ago, LeFeet announced its S1 modular electric underwater scooter. The Chinese manufacturer is now back again, with the less expensive C1 model – and it can do more than just scoot underwater.

Swedish boat-builder Candela is looking to make some waves in the local water transportation scene with a fancy new foiling ferry it claims will be world-beating in a number of ways, including becoming the fastest all-electric passenger ship ever made.

Technology appears to be a big topic at this year's Palm Beach boat show, so it's not too surprising to see the launch of a Silicon Valley startup there. Navier is looking to make nautical design more high-tech with a self-piloting electric hydrofoil.

Swedish boat company X Shore makes its move across the Atlantic, launching its all-electric Eelex 8000 in the US. The modular, connected boat brings a versatile layout and intelligent software suite with over-the-air updates.

Last year, Yanmar announced that it was looking at developing a maritime system using hydrogen fuel cells from Toyota's Mirai production line. Now a passenger boat prototype has hit the water off the coast of Kunisaki in the Oita Prefecture in Japan.

Bringing together power, speed and head-turning aesthetics, Denmark's Sarvo Marine has created the Sarvo 37. The shimmering aluminum-hulled day cruiser comes powered by four figures worth of pure-electric horsepower for speeds up to 70 knots.

If you want to gather oceanographic data over long distances, an "underwater glider" is often the best way to go. A novel system from California-based company Seatrec should soon power such vehicles, utilizing the temperature gradient of ocean water.

Resting 12,500 ft below the surface, the wreck of the Titanic has rarely been visited by manned submarines. But Triton's latest luxury sub can take you down there in air-conditioned comfort, and it sports a clever set of articulating gull wings.

Mercury Marine recently pulled the covers off an all-new flagship, a powerful hunk of water-dipped muscle it bills as the world's first V12 outboard engine. The naturally aspirated 7.6-liter V12 Verado produces 600 hp.

We've already seen electric motorboats and even ferries, but a considerably larger battery-electric vessel should soon be in operation. It's called the e5 tanker and interestingly enough, it will be used to deliver conventional fuel to other ships.

Any unsuspecting swimmers diving off the coast of Cannes may think they've stumbled onto some kind of ancient Easter Island-type civilization swept into the sea, but they'd actually be seeing the work of underwater artist Jason deCaires Taylor.

Back in 2018, Hungary's Narke revealed the world's first electric personal watercraft designed for proper series production – the GT45. Now the company has announced its latest model, with a more powerful electric drive and room for three.