SharkGuard
SharkGuard is a patented technology in which we incorporate multiple rare-earth magnets into the bodyboard and/or surfboard which project a magnetic field down into the water around the board. Sharks have a unique electrosensory organ system that is sensitive to magnetic fields.
The purpose of projecting a strong magnetic field down into the water is that it overwhelms this electrosensory system and is a distressing and uncomfortable sensation for the shark, which in many cases drives the shark away.
Please note that we do not guarantee this works equally across all shark species and that all interactions with sharks will be avoided. Read all disclosures below.
This technology has been on the market in accessory format (bracelets, etc.) for the past 15 years or so, and has proven effective. Until now it has never before been incorporated directly into the manufacturing process for surfboards and/or bodyboards.
We conducted testing in March of 2026 against Bull Sharks, which are well known as the most aggressive species of shark. In the video below, we showcase how a swarm of sharks did not take a suspended piece of bait (Bonita) off of a surfboard with SharkGuard for over 10 minutes while we chummed the water around it. We removed that board and placed a similarly baited control board without SharkGuard and the bait was taken immediately by the sharks. The video showcases the sharks are clearly hesitant to approach the board with the SharkGuard tech, even when baited.
The below video is a longer length version of the testing done on this day, showcasing commentary from the Florida Shark Diving team. After multiple tests in which the SharkGuard board did not have the bait taken, we chummed the water heavily to create a feeding frenzy and hung an entire bloody fish below the board. Again with the control board (no SharkGuard tech), the fish was taken immediately by the sharks. With the SharkGuard board we continued chumming heavily for about 5 minutes and eventually a large bull shark did take the bait. This showcases that although the magnetic field clearly does deter these sharks, at some point if motivated enough they can overcome it.
In the below video, a Rock-It bodyboard with SharkGuard technology is suspended in shallow water off of the Florida Keys in August 2025 with a piece of bait (Bonita/fish) suspended from a fishing line below the board to attract sharks. A blacktip shark approaches the bait and takes off quickly once it senses the magnetic field emanating from the board.
Additional Disclosures & Information
SharkGuard Reduces Risk But Does Not Eliminate It
- SharkGuard is a shark deterrent that helps reduce the risk of unwanted shark interactions, but we do not guarantee complete protection or prevention of all shark encounters. There is no guarantee of zero shark interactions with the device.
- Ambush attacks from large predatory species will not be deterred by SharkGuard.
Magnetic Field & Medical Devices
- Because SharkGuard uses strong magnets, people with pacemakers, defibrillators, or other implanted medical devices should not attempt to handle or ride a board containing SharkGuard technology without consulting a doctor.
- These magnets can also disrupt sensitive electronics (e.g., hard drives, credit cards, cell phones) if placed too close (recommended at least ~12 inches/30 cm away).
Do Not Attempt to Remove Magnets
- Any attempt to remove, damage or alter the magnets can injure the user and will void warranty coverage.
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