About
The flagship distance — starts at 21:00 on Aug 21 for a full night traverse of Yên Tử's primary forest. Passes ancient temple complexes and summit pagodas before descending through the heritage zone. Shares key checkpoint Khe Song – Thác Bạc (Silver Waterfall) with the 50km and 25km.
Organized byGreat Race Vietnam
Difficulty

Hard107 KE
KM-Effort = distance (km) +elevation gain (m)100
Based on the ITRA standard.
Elevation Density52 m/km · Hard
Elevation Density =elevation gain (m)distance (km)
Time limit:24h