Cathedral of the Immaculate Conception

The Cathedral of the Immaculate Conception in Wat Mai, Mueang Chanthaburi, is the largest Catholic church in Thailand. Located on the east bank of the Chanthaburi River, this Gothic-style cathedral is known for its twin spires, stained-glass windows, and French-Vietnamese heritage. The current structure, completed in 1909, is the fifth church built on the site since 1711 and remains the center of the Roman Catholic Diocese of Chanthaburi.

Visitors can expect a Gothic-style cathedral with twin bell towers, pointed arches, and colorful stained-glass windows. The interior features a high vaulted ceiling, wooden pews, ornate altars, and a revered statue of the Virgin Mary decorated with gemstones. The cathedral sits in a quiet riverside setting near the Chanthaboon Waterfront Community, with an open plaza in front and views of the Chanthaburi River. Visitors can explore the exterior, interior nave, and small souvenir area.