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Q&A How to estimate the depth of a pool of water from a distance above?

Firstly, Bear Grylls is notorious for not doing things the way they look on television, but actually conducting extensive planning, multiple attempts, using alternative methods to get better camera...

posted 11y ago by roryalsop‭

Answer
#1: Attribution notice removed by user avatar System‭ · 2020-05-27T11:08:43Z (over 4 years ago)
Source: https://outdoors.stackexchange.com/a/4526
License name: CC BY-SA 3.0
License URL: https://creativecommons.org/licenses/by-sa/3.0/