Originally Posted by
GameFAQs
Fishing with the bobber, while confusing at first, is actually quite easy.
First, equip the Rod to the "B" button, then position yourself near a body
of water (Preferably one with FISH! You can only catch fish that are actually
there so use the "C" button and inspect the area first!). Now simply press
"B" until you are in the mode where tilting the wiimote back and forth moves
the line. Once there, tilt the wiimote back so that the rod is vertical, then
snap your wrist forward to cast the hook. Now watch closely as the bobber
aligns itself vertically and then starts to sink. The bobber will submerge
most of the mass underwater. Now, to catch a fish, simply wait for the bobber
to be tugged down at least half its total length underwater, and then when
that happens, snap the wiimote back into a vertical position. If you wait too
long the fish will get away, but if you go to early you won’t set the hook.
Once the fish is hooked landing it is relatively simple, just hold the
wiimote in the vertical position until the fish is caught. NOTE: Unlike
previous Zelda games cannot be caught in bottles. Unless storyline related,
all caught fish are immediately released, after gaining an item (usually a
heart or rupee).