The silver grass at Ganwoljae is legally protected under local ecological management to preserve its seasonal growth cycles.
The pass acts as a natural wind tunnel, contributing to the distinct, swaying motion of the silver grass fields during autumn.
The location is part of the Yeongnam Alps, a collection of nine mountains over 1,000 meters in altitude that are collectively managed for eco-tourism.
Archaeological surveys in the surrounding Yeongnam Alps have occasionally uncovered remnants of historical mountain fortresses dating back to the Silla Dynasty.
The area is a recognized habitat for protected wildlife, including certain species of raptors that migrate through the mountain ridges.
Ganwoljae is a high-altitude mountain pass located between Ganwolsan and Sinbulsan in the Yeongnam Alps, Ulsan. It is renowned for its expansive silver grass fields that span approximately 33 hectares across the ridgeline. The area serves as a primary hub for hikers traversing the Ulsan Ulju Seven Summits trail. A well-maintained wooden deck and pathway system connects the pass to the lower valleys, facilitating foot traffic. A mountain rest area at the pass offers essential supplies and seating for hikers. The site sits at an elevation of approximately 900 meters above sea level. It is a major destination for autumn foliage and silver grass photography. The location remains accessible throughout the year, weather permitting, and connects to several established climbing routes in the Yeongnam Alps.
The wooden deck stairs overlooking the silver grass fields with the mountain ridgeline in the background.
Bring layers, as the high-altitude wind can cause temperatures to drop significantly compared to the city center.
Use trekking poles, as the primary ascent routes are steep and consist of uneven gravel or paved switchbacks.
Carry a portable power bank, as cold temperatures and high-altitude exposure drain mobile phone batteries quickly.
Do not attempt the hike during high wind warnings or heavy rain, as the pass is exposed and lacks significant natural cover.
Access may be restricted during severe weather conditions or wildfire prevention periods, typically in spring and autumn.
Stay strictly on designated wooden decks and footpaths to prevent damage to the silver grass habitat; leave no trace policy enforced.
