22 metres 
22 metere (72 feet) depending on conditions. Under these conditions 12-15 meters (40-50 feet) is typical.
Winners Week 1 announced The lucky winners of this event are: timphipps 
Lucky Winner : 14-day monthly cloud storage service for a month*1
Please ask the winners to contact us via private message to our aosu_Captain or official account ！！！！
Our Aosu official whatsapp: share on WhatsApp
Thank you all for your participation and support! This event will continue this month and we look forward to your participation for the next two weeks!
We look forward to your participation in the security quiz. You are also welcome to leave a comment under the post about what you would like to win. We are eager to hear your ideas! 
2 Likes
72 feet depending on variables