[2] Pico de Loro was first named by Spanish sea-farers which means "Parrot's Beak" as its pointed summit resembles the shape of a parrot's beak from afar and it is commonly used as a signal by sea-farers to turn east to get to Manila Bay.

Pico de Loro is found within the Talahib Andesite rock formation (Avila, 1980).

This unit appears to be equivalent to Wolfe and others' (1980) Banoy Volcanics, which they date to the Middle to Late Miocene.

[5] Near its summit is a lone vertical cliff feature called the Parrot's Beak or the Monolith that offers a 360-degree view of the protected landscape and the shores of Limbones Cove.

[6] Hiking was still prohibited during the COVID-19 pandemic in 2020, which was extended until the middle of 2022 due to trail damage caused by Typhoon Jolina in 2021, and it was under renovation.