Marinduque (/ˌmærənˈduːkeɪ/; Tagalog pronunciation: [maɾinˈduke]), officially the Province of Marinduque, is an island province in the Philippines located in Southwestern Tagalog Region or Mimaropa, formerly designated as Region IV-B. Its capital is the municipality of Boac. Marinduque lies between Tayabas Bay to the north and Sibuyan Sea to the south. It is west of the Bondoc Peninsula of Quezon province in mainland Luzon; east of Mindoro Island; and north of the island province of Romblon. Some parts of the Verde Island Passage, the center of