: It's difficult to get close enough to a horizontal window or
: viewing box to cut off the reflection of the bright sky in a
: kayak. What may work is a window in the bottom, between the
: legs, made so at an angle so you are looking into it more or
: less at right angles to the glass. Your body will tend to shade
: it, and you will then be looking in the direction you are going
: which will probably be more interesting, too. The boat will have
: to be rather beamier than usual in a kayak to allow space for
: the legs, of course. It will have to be below the waterline and
: arranged so air is purged.

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If the water is cold enough to cause condensation, a plastic window may help . . .