What directions and warnings does Odysseus give?

Circe tells Odysseus he must travel to Hades to get the advice of the blind Theban prophet Teiresias. She tells Odysseus how to sail to Hades, and gives him and his crew a fair wind to sail him swiftly there.

When Odysseus returns, Circe tells him to follow one of two alternative paths leading back to Greece: toward the "Wandering Rocks" where King Aeolus (god of the winds) reigned or passing in between the Scylla monster and a giant whirlpool.

Block his ears with wax so he couldn't hear them.