This is old watchtower built during the 16th century located at Brgy. Melgar, was used in the old times to warn villagers of oncoming Moro raiders.

It was erected at the hilltop with magnificent views of the sea, agricultural plains and a network of local rivers connecting to the Naujan Lake and overlooking an old harbour and the surrounding bay.

It stands as a testimony to the constant threat of piracy that plagued these waters well before the colonial period. Merchant ships hailing from China and later from Spain and the rest of Europe were constantly on their guard against seafaring criminals, and the watchtower was built out of concern for invading bands of Muslim marauders.