English: The Ermita Hill chapel and the ancient viewing point and tunnel site is said to be Old Baler, Aurora, Philippines' watchpoint and the highest peak of the old town.. With the bell tower's excellent vantage point, the people of Baler were warned of raiding pirates (moros). This historic secret tunnel devised by the people of old Baler as escape route during the frequent raids of moro pirates. The starting point is said to be from a location in Barangay Santa Elena leading up to this site at Ermita Hill.[1] The underground tunnel enabled the families to run to Ermita Hill, safe from the tsunami which was named Tromba Marina (tidal wave) that struck this town in 1735.[2] The tunnel leads to Baler's Sitio Castillo that was used as a garrison by Spanish forces. The Spaniards improved the tunnel in the 17th century, but it was originally built by the aboriginal Dumagat, the first settlers of Aurora, to provide an escape path for residents running from pirates coming in from the bay.[3]