[3] A 1905 report documented the island as then being forested, and it was estimated that nearly half the trees were a species of Molave described as "wonderful hard wood", as "scarce along the coasts of the archipelago".

and noting that a large quantity of seeds would be brought a forest reserve facility for experimentation aimed at producing a cultivatable variety.

The company then opened several more mines including the Panian Pit which operated until in October 2016 shortly after its coal deposits depleted.

The island is also accessible by boat, specifically from the town of San Jose in neighboring province of Occidental Mindoro.

[12] Waters adjacent to Semirara also host all recorded giant clam species in the Philippines.