 The "Dresden" then opened fire in earnest, but the "Ortega", stern on, did not present a large target and none of the shots took effect.Chancing all risks in the shallow and uncharted channels of Nelson Strait, Captain Kinnier succeeded in reaching waters where it was impossible for the "Dresden" to follow.Lowering some boats he sent then ahead of the ship to take soundings, and by following slowly in their wake, Captain Kinnier succeeded eventually in working his way through nearly one hundred miles of narrow and tortuous channel and emerged into the Straits of Magellan.