[Tagging] Beaches

[John Smith]

On 9 April 2010 08:33, M∡rtin Koppenhoefer <dieterdreist at gmail.com> wrote:
> 2010/4/8 John Smith <deltafoxtrot256 at gmail.com>:
>> From http://wiki.openstreetmap.org/wiki/Beach
>>
>>> "Beach areas should always meet with a natural=coastline way. Do not use this tag for patches of sand/gravel which are not by a coastline. Note that the natural=coastline should ideally be positioned at the average high tide line, which may mean the beach is quite small or not mapped at all in fact."
>>
>> By this logic wouldn't the beach cover from the average high tide line
>> to the average low tide line?
>
>
> yes, but tides are IMHO off this logic.

Where's the flaw specifically, since tides are specifically referenced
in the wiki page.