Totally different area and not related but there's another thread running at the mo with a video of Dolphins. Not that there's any problem with that if your stationary but I thought (and the link you provide confirms) that your supposed to observe from distance 100m and not track em or seek them out in such a way
Clearly no harm was intended or done in the other threads video so please don't get me wrong...I'm not suggesting any wrong doing and the Ribnetter concerned has more then enough skills and experience to justify such actions (not that they need it). Could well be this report had similar intentions but it went wrong.
Amazing video though!!
Peter ~
askboatsandoutboards4sale@sky.com ~ 07930 421007