The Himalaya Sports Tampin Trans Naning Ultra (HSTTNU) is a challenging trail-run with a 34km loop (once, twice, or thrice), the 21km Yang di-Pertua (YDP) Challenge, and the 8km Forest 9 Mountain race. Starting and finishing at Tampin Water Park, the courses traverse the iconic Trans Naning Trail with rugged seven-peak ridges and lush jungle.