"Ki Ayker" wrote...

When "sea kayaking," if I am paddling alone at a comfortable speed I
find
that I generally do about 4 knots per hour. I can pretty much sustain this
speed all day long. I am a fairly competent paddler who prefers relatively
fast
boats. So I would guess that you should be able to do 3 to 3.5, if not 4
knots
per hour, multiplied by however long you feel you can paddle in a day.

Let's see... That's 4 knots at the end of the first hour, 8 knots at the
end of the second hour. . . and 32 knots at the end of an 8-hour day.
That's one mighty fast kayak!

OTOH, you might have meant "4 knots" or "4 nautical miles per hour"... ;-)