For adventure seekers and history buffs alike, the waters of San Esteban, Ilocos Sur, hold a secret beneath the waves. While the town is famous for its coastal watchtower and “heavenly” grotto, its most thrilling attraction lies in the depths of the West Philippine Sea: the San Esteban World War II Wreck.

The History: A Relic of the Great War

The waters of Ilocos Sur were a strategic theater during the closing years of World War II. As the USAFIP-NL (United States Armed Forces in the Philippines – Northern Luzon) and local guerrillas pushed to liberate the north, several Japanese supply ships and transport vessels were intercepted by Allied air and sea power.

  • The Vessel: Though commonly referred to as the “San Esteban Wreck,” divers and local historians identify it as a Japanese transport ship or freighter.
  • The Sinking: It is believed to have been scuttled or sunk by Allied forces during the campaign to reclaim the Ilocos coast in 1944–1945.
  • A Living Reef: Over the decades, the ship has been reclaimed by the ocean. What was once a vessel of war is now a thriving artificial reef, covered in vibrant corals and home to diverse marine life.

The Dive Site: Exploring the Depths

San Esteban is becoming a premier destination for Scuba Diving in Northern Luzon because of this wreck.

  • Depth: The wreck sits at a depth of approximately 80 to 100 feet (roughly 25–30 meters).
  • Condition: Much of the ship’s structure remains recognizable, including parts of the hull and deck machinery, though the tropical waters and time have encrusted everything in a thick layer of hard and soft corals.
  • Marine Life: Divers can expect to see large schools of jacks, snappers, and groupers. If you’re lucky, you may spot sea turtles (pawikan) or barracudas patrolling the site.

The Landing Site: Liberation History

The shoreline near the dive site is equally historic. Known as the San Esteban Landing Site, this stretch of beach was used by liberating forces and local resistance groups to receive supplies and coordinate movements against the retreating Japanese forces in the mountains of Ilocos.

Today, it is a peaceful area, often used by local fishermen, but a small plaque or local markers often remind visitors of the blood and grit that once defined this coast.

How to Get There & Dive

If you are coming from Candon City or Vigan, the dive site is easily accessible via the San Esteban town proper.

  • Logistics: Since San Esteban is a developing dive destination, it is best to coordinate with dive shops based in Vigan or Bauang, La Union, who often organize boat trips specifically to this site.
  • Location: The wreck is located offshore, roughly a 15-minute boat ride from the Bateria or Apatot coastlines.
  • Best Time to Visit: To ensure the best visibility (often reaching 15–20 meters), plan your trip between March and June, when the seas are calmest.

Traveler’s Tip:

Because of the depth and the potential for currents, this is generally considered an Advanced Open Water dive. However, even if you aren’t a diver, visiting the landing site at sunset offers a poignant moment to reflect on the history resting just beneath the horizon.