https://www.youtube.com/watch?v=ksNvozC78qA

Subwing
Being dragged underwater by a speedboat while clinging to a two-foot-wide board might sound ill advised, but getting the hang of the Subwing is easier (and more pleasant) than it sounds. And at low speeds, this is a rip-roaring way to see the coral and fish at deeper than snorkeling depths.
Wokart
n a word, revolutionary, the first patented designer watercraft in the world with a mid mounted outboard engine.
Fast, responsive, agile and fun through the combination of motoring (Go Kart), boating and never seen before innovations like the mid mounted engine which provides class leading high speed 90° turns.
The patented WoKart has a unique asymmetric catamaran layout designed by Dr. Albert Nazarov. WoKart transforms water into roads and gives the feeling of driving on water, even in areas where Jet craft are no longer permitted.
Jetsurf
Born from a need to push the limits of conventional watersports, Jetsurf is devoted to the development and design of the best motorized surfboards in the world. While lacking a coast, the Czech Republic offers highly qualified, technical expertise in hydro – mechanical engineering and no shortage of enthusiastic riders who have aided in the astounding success of this small firm.
From humble beginnings in a tiny workshop, Jetsurf is now the world leader in producing the fastest, lightest and most dynamic craft for this unique and fast – growing sport.
The Jetovator
The Jetovator is a water sports accessory that extends the ability of an existing personal watercraft (PWC). The Jetovator does not come with its own power source and and requires a minimum of 180 hp personal water craft to operate. The Jetovator redirects the water thrust from the jet unit of the PWC along a sixty-six hose to the Jetovator bike. This water thrust is then used to propel and elevate the Jetovator into the air. The rider can also redirect the water thrust of the two front nozzles in order to maneuver the Jetovator in all directions.The PWC, which provides the power, follows behind the Jetovator using the hose as a tether.
Jetlev Flyer
Carbon Sports GmbH in Germany is the only manufacturer worldwide that produces the astonishing, complete carbon fibre made JETLEV-FLYER JF-300 with a powerful 300 HP four stroke marine engine.
Jetlev-Flyer has received the CE report of conformity from the German Lloyd (DNV-GL). This document is the European certification that certifies the Jetlev-Flyer on a continental and international level.
Flyboard Jetpack
Flyboard® Legend is a board connected to a PWC turbine allowing the user to rise into the air, dive and jump out of the water and perform various freestyle figures. The Flyboard® Legend is connected to the PWC by a hose, (18 or 23 meters long) redirecting the water flow pressure to nozzles placed either side of the board. While managing the PWCs’ throttle, the user can reach up to 12 meters high (height varying according to the PWC power). The hydro-propulsion forces created offer a unique sensation and a total freedom of movement to the rider.
Seabob
Seabob is an underwater scooter. The SEABOB will glide along powerfully with you aboard. Feel the awe-inspiring manoeuvrability. And the new-found desire for water will never relinquish its hold on you again.
Seabreacher
Innespace Seabreacher (or Sea Breacher) is a two-seat semi-submersible personal watercraft “submarine”, with a shape based on that of a dolphin, and the ability to imitate a dolphin’s movement. The two seat vessel is powered by an Atkins Rotary Marine engine coupled to a Hurth V-drive transmission.