Balikos Ulog (Snake Coil) is a Registered Property, Municipality of Balbalan, Kalinga located at Balbalan, Kalinga, CAR.
The two big rocks are half submerged along the Ligayan Creek and are exposed everyday to sunlight and rain. As years go by, the rocks corroded little by little and even reduced in size. According to the locals, the rocks used to be enormous. The coil shape of a snake around the rocks used to be very visible also, but today, the dents are no longer deep compared from before. The reduction of the sizes of the rocks and their shape may have been caused by the corrosion of the rock itself.