>> let the float go, get a fix and reel it back in. Any decent GPS will
>> give you bearing and distance back to the origin point ie the dive boat.

> I don't think my magellan gps will give good bearing information at
> swimmer's speed - I have to get the boat moving for good data...

Given two points (boat's location when you left it and swimmer's
current antenna position), bearing and distance information do not
require movement.  If your GPS requires movement before it shows
you this information, they you should get another GPS.

Speed requires some minimum amount of movement before the data
is usable.  But I get a reasonable speed readout while walking
with my Garmin handheld.

                                                Lee Jones

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