In The Odyssey, how is Odysseus destined to die?

When Odysseus
visits the Land of the Dead, Tiresias tells him he will die a "seaborne death." No
further details are provided. When Odysseus returns to Ithaca and restores after taking care of
the suitors, he must make peace with Poseidon. Tiresias tells him to take an oar and go so far
inland that no one recognizes the implement; they think it is a "winnowing fan," a
farm tool used for separating wheat from chaff. At that point Odysseus is to plant the oar and
make certain sacrifices to Poseidon to end their feud. After that time Odysseus will apparently
live a long life before his predicted death at sea.