Drill Films leads small-group mammal photography and observation expeditions through the untouched rainforests of Bioko Island, one of Africa’s last true biodiversity refuges.
Guided by filmmaker and field naturalist Justin Jay, these expeditions venture deep into the Gran Caldera de Luba Scientific Reserve, home to an extraordinary concentration of wildlife — including 11 species of primates, among them the endangered Bioko drill (Mandrillus leucophaeus poensis), the Bioko red colobus (Procolobuspennantii pennantii), an island endemic, and Preuss’s monkey (Cercopithecus preussi).
Participants may also encounter other remarkable species such as the Gabon viper (Bitis gabonica), the rare and emblematic picathartes (Picathartes oreas), and all four species of nesting sea turtles along Bioko’s volcanic coastline — the leatherback (Dermochelys coriacea), green (Chelonia mydas), hawksbill (Eretmochelys imbricata), and olive ridley (Lepidochelys olivacea).
Each 10-day journey combines ethical wildlife photography, field tracking, and primitive rainforest camping. Using non-invasive fieldcraft techniques developed for international documentary work, we observe and photograph animals without altering their natural behavior.
With a maximum of four participants per expedition, these trips are designed for passionate mammal enthusiasts, photographers, and conservation-minded travelers seeking a genuine wilderness experience in one of Africa’s most isolated and wildlife-rich ecosystems.
