Marinduque is considered generally safe for solo female travelers. While the crime rate is quite low, it's always good to take usual precautions. Filipinos, especially in Marinduque, are known for their friendliness and hospitality. Locals typically go out of their way to assist tourists, even solo female travelers. Some social issues like catcalling may be encountered but these occurrences are relatively rare. The island is small and community-centered, which generally leads to safe conditions. However, do remember that no place is 100% safe - so proper caution should still be observed.