Rentap was mentored by Dana Bayang and accompanied him on major  (headhunting) expeditions from south of Sarawak to the Kapuas River in what is now West Kalimantan, Indonesia.
Rentap was guided by Dana Bayang and participated in significant (headhunting) expeditions spanning from south of Sarawak to the Kapuas River in what is now West Kalimantan, Indonesia.