The 2026 'Three Mountains, Three Colors' challenge includes submitting a summit-marker photo from Palgongsan's Birobong through the Cashwalk app. The published period is August 3–December 3. Check national-park restrictions, weather and app reward rules.
This active autumn 2026 travel promotion is useful to travelers checking eligibility and deadlines.
The 2026 'Three Mountains, Three Colors' challenge includes submitting a summit-marker photo from Palgongsan's Birobong through the Cashwalk app. The published period is August 3–December 3. Check national-park restrictions, weather and app reward rules.
Before setting out, check the organizer's latest participation notice and on-site availability.
The Korea Tourism Organization's 2026 autumn travel page lists the period and basic participation method.
Individual site hours, transit, booking availability, exhausted prizes and last-minute changes remain unverified.
