It is west of the Bondoc Peninsula of Quezon province ; east of Mindoro Island ; and north of the island province of Romblon .
Marinduque lies between Tayabas Bay to the north and Sibuyan Sea to the south .
Marinduque is west of the Bondoc Peninsula of Quezon province ; east of Mindoro Island ; and north of the island province of Romblon .
Marinduque lies between Tayabas Bay to the north and Sibuyan Sea to the south .