Harrow said...
Hmm, might be triggered (correctly) so often that we are never allowed in the water.
I agree - what may start as a good idea, may turn into a policed action where every time a noah swims past minding its own business - all water users have to exit the water. If this happens too much, it will be seen as too great a risk to swimmers, and they may start to close the beaches.
I know for a fact that sharks are where I windsurf/sup due to being an avid fisherman and seeing many of them over the years, and recently encountering a white whilst SUPing, although it cared less about us! I don't believe that they are there to "eat us", although in warmer waters (WA, NT, QLD & NSW) shark attacks are increasing and something needs to be implemented to provide a safer option for water users.
I really don't want a lifeguard sounding an alarm every half hour due to a shark simply cruising past - but the concept might be a good start.