It is 47km from Tabubil... a two-day walk, or 15 minutes by plane!
Stay at the Trabulok Guesthouse.
Climb Botop Tikim.
The Poles wrote: "IMALFOL TEM After four days hike along almost invisible soaked trail our guides, and porters at the same, stopped at the edge of enormous cave pitch - Imalfol Tem (topographic data: 141o 49' 032" E, 05o 13' 624" S, entrance elevation 2,280 m above sea level). The entrance was situated at the bottom of a karst crater overgrown with wet tropical thicket..."