Great Barrier reef the largest its been since recording started., page-171

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    I'd say this:
    Aerial Survey SOP - Edition 3 (Apr2022)_NC_JM-upload (aims.gov.au)

    Is a bit more comprehensive then anecdotes from dudes in a dingy.
    Although with some training and resources 'dude in dingys' could be great addition the various data collection sites:
    Citizens of the Great Barrier Reef: Unite for the Reef (citizensgbr.org)
 
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