Record party in Cat Ba: Jet ski show breaks Guinness limits!
On May 30, 2025, the Symphony of the Green Island show in Cat Ba witnessed two Guinness World Records in offshore sports.

Record party in Cat Ba: Jet ski show breaks Guinness limits!
On May 30, 2025, the “Symphony of the Green Island” show on Cat Ba will present a true spectacle that not only thrilled spectators, but also set two Guinness World Records. Loud Vietnam.vn These are the largest jet ski formation with a fireworks launch and the most backflips on a flyboard in one minute, performed by Tomasz Kubik.
The preparation for these records took several months. During this time, a rigorous evaluation process was established to ensure that all Guinness World Records requirements were strictly adhered to. At the beginning of 2025, the organizer submitted a detailed proposal for setting the records. Sonia Ushirogochi, the chief arbiter of Guinness World Records, confirmed the establishment of new criteria that required an objective review of the various program items.
Assessment procedures and technical requirements
To set the record for largest jet ski formation, the participating jet skis had to be piloted by real people. This formation had to be held stable for at least 20 seconds while fireworks were fired at the same time. These requirements have been reviewed by independent witnesses, including fireworks and water sports technicians, to ensure objectivity.
Strict controls were also necessary for the second record, in which Tomasz Kubik completed 43 valid backflips in just 60 seconds. How Laodong.vn reported, the number of somersaults were monitored using multi-angle recording devices and a speed-angle sensor system. Additionally, all event material, including security-related documents, had to be independently censored.
The show and its significance for Vietnam
The entire show is seen as a significant step for Vietnam to be recognized on a global level. With an impressive performance area of 50,000 m² on the sea, the event represents an example of international standards in organization and inspection. The combination of jet ski, flyboard and musical accompaniment, complemented by a spectacular fireworks display, will be presented as part of a new product range from Sun Group in the center of Cat Ba Island.
Tomasz Kubik said that being recognized by Guinness was a special honor for him. He shared that he even managed 46 backflips in a row when he was training and there is a possibility that he could break more records in Cat Ba by early September.
The official results confirming the validity of the two records were published on May 23rd. On the opening night of the show, which is scheduled for May 30th, the handover of the records to the organizing committee and Tomasz Kubik will be celebrated. The show is already attracting numerous visitors during rehearsals and promises to be an unforgettable experience.