The ridge, which overlooks Taal Lake in Batangas province, is actually the northern rim of Taal Caldera. The wide cavity of the ancient volcano is partially filled by Taal Lake with Taal Volcano, the second most active volcano in the country, situated near the middle of the lake. The northern slope of the ridge is gently rolling down slope till it reaches the sea level at Manila Bay, in contrast to the rapid drop in its southern slopes and east of Mount Sungay. At some places on the lakeside appear great escarpments of and more of altitude, that are almost vertical, as at Mahabangato, in Barangay Banga, and at Balitbiring, in Barangay Caloocan in Talisay, Batangas.