Zg636. This is the east end of the new Kaybiang Tunnel, part of the Ternate-Nasugbu Road and indeed we found a way down to the Sinalang Cove Valley, more or less right there at the entrance, going down to the right. The tunnel has become a frequent visited tourist spot!
On January 31, 1942 Battery Koehler’s 12 inch mortars, which had not been fired for a number of years, spoke in anger for the first time. Having detected Japanese preparations to bombard Fort Frank from the Pico de Lora Hills, counter fire was laid down on those positions within its range. A total 30 rounds were fired at gun positions near Ternate by the mortars to which the 155mm guns added 36 rounds. These Japanese guns were part of the Kondo Detachment and initially consisted of four 105mm and two 150mm guns. In mid-February another two l50mm guns would be added to this force.