Just to let you guys know that Simon from SAC went to the waterfall after work. The banks above the waterfall were no challenge for a member of the Swiss Alpine Club and he got the drone. I will meet him later in the week. Thank you all for your...
That will be a plus battery. Heavier than the standard battery and not available from DJI in the UK. Takes the drone over 250g and maybe causes it to broadcast RID info.
Thanks everyone for your help. Someone from SAC will go and have a look to see if they can get the drone, and I'm quite optimistic that it will be pretty easy for them so I'm happy now it won't be causing any damage (though less happy that I need...