Pedals power paddles in Thames-travelling Jamima Paddleduck boat

Although pedal-powered boats do exist, most use either a propeller or flapping fins. Ben Kilner's one-off Jamima Paddleduck takes a different approach, with two rear paddles mounted on a bike frame – and the setup has some definite selling points.

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America’s Cup sailing team spin-out launches all-electric foiling workboat

Artemis Technologies has launched what is claimed to be the world's first commercially viable all-electric foiling workboat, which cuts through the water at up to 34 knots and offers a per-charge cruising range of up to 60 nautical miles.

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China launches an autonomous mothership full of autonomous drones

China christened a remarkable new 290-foot ship last week – the world's first semi-autonomous drone carrier. It'll carry, launch, recover and co-ordinate the actions of more than 50 other autonomous aerial, surface and underwater vehicles.

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Autonomous container ship completes 790-km trip from crowded Tokyo Bay

Several groups in Japan have been demonstrating fully autonomous ships in the last few months, and the latest, a 95-m container ship, has just completed a 790-km autonomous voyage starting and ending in the heavily congested waters of Tokyo Bay.

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Colossal 115-ft party sub offers an underwater venue for 120 guests

If you've ever gone out on a booze cruise and thought "gee, I wish there was less fresh air," this one's for you! Dutch submarine company U-Boat Worx has announced an enormous new underwater venue for up to 120 guests plus a full crew and staff.

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Hydrus packs autonomous ocean exploration tech into a much smaller package

While AUVs (autonomous underwater vehicles) are invaluable for gathering oceanographic data, they also tend to be fairly large and very expensive. The Hydrus offers a much smaller, less costly alternative, which still packs a lot of punch.

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Rackham Aero SUP can be converted to a pedalled or paddled kayak

Stand-up paddle boards certainly can be fun, but kayaks are generally a faster, more efficient means of getting around. Watercraft company Bote has now combined the best features of both, in its redesigned Rackham Aero paddle board.

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Lift’s new lightweight eFoil promises newcomers a smoother ride

Puerto Rican startup Lift has introduced its third-generation eFoil, offering customers a cheaper point of entry to the young but burgeoning watersport, along with a smoother ride courtesy of a redesigned fiberglass deck.

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Ingenity day boat dunks electric skateboard tech in the water

Going from water sports to luxury cruising, Ingenity has followed up its Super Air Nautique 22E electric sport boat with the 23E day boat. The new day cruiser can spend up to 14 hours on the water and offers a spacious, triple-lounge deck for 11 people.

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