DISTANCE : 56.8 km.

D+ cumulative elevation gain : 3,130 m.

CUT-OFF TIME : 17 hrs.

START : 13 JUNE 2026   05:00

END : 13 JUNE 2026   22:00

VENUE : Princess Sirindhorn Astropark (NARIT)

Is the longest and will offer 3 iTRA points.
The major challenge is the “back loop,” which involves visiting Suan Prik Temple via The Last Man Standing Trail.