This may be the right river, put "palo river" in """""" marks in your browsers search engine. You will get lots of info.
On October 20, 1944 the invasion force appeared awesome to the waiting Japanese as it swept toward the eastern shores of Leyte. Precisely at H-hour, 1000, the first wave of the 1st Cavalry Division assaulted the beach. The landing at "White Beach" was between the mouth of the Palo River to the south and Tacloban, the capital city of Leyte. Troopers of the 5th, 7th, and 12th Cavalry Regiments quickly fanned out across the sands and moved into the shattered jungle against occasional sniper fire.