12-Hour Mountain Route Itinerary (12小時山徑實測行程表)
This plan is based on the actual pace of that day, emphasizing departing from Taichung at 3:00 AM to ensure crossing the unstable forest road collapse before dark.
| Time | Location / Node | Notes |
|---|---|---|
| 03:00 | Taichung Station (台中車站) | Departing early is the premise of a solo climb |
| 06:15 | Hehuanshan Tunnel Workstation Start (合歡隧道工作站起登) | Entering 820 Forest Road |
| 08:45 | 8.4K Final Water Source (8.4K最後水源地) | Major rest, water up, prepare for steep ascent |
| 10:55 | 9.6K Vertical Rock Wall (9.6K垂直岩壁) | Technical climbing point, hands and feet required |
| 12:30 | Mount Bilu Summit (3371m) (畢祿山頂3371m) | Summit rest 30 minutes |
| 13:00 | Timely Descent (準時回程) | Withdrawal deadline, ensure safety |
| 15:30 | Return to 8.4K Water Source (回到8.4K水源地) | Complete the hardest descent |
| 18:00 | Exit 820 Forest Road (登出820林道) | End 12-hour mountain activity |
| 21:30 | Return to Taichung (回到台中) | Complete solo climb |
Chapter Two: Full Route Description (Life Record) (第二章：整段路的描述（生活紀錄）)
Prelude: Movement from Previous Day and Taichung Night (序曲：前一天的移動與台中的夜晚)
Actually, the mountain climbing rhythm starts from the previous day. On the evening of May 23, I took the EMU3000 train to Taichung. Watching the clean train car and changing city lights outside the window, it was hard to imagine facing muddy trails hours later.
<BlogGallery images={[ { src: “mountain/Mt-Bilu/20240523_175416.jpg”, alt: “Platform Waiting (月台候車)” }, { src: “mountain/Mt-Bilu/20240523_180428.jpg”, alt: “Express Train Arriving (自強號進站)” }, { src: “mountain/Mt-Bilu/20240523_180530.jpg”, alt: “Inside Train Car (車廂內景)” } ]} />
Arriving at Taichung Station at 8 PM, the old station glowed with solidity in the night - that was the last comfortable time before departure.
<BlogGallery images={[ { src: “mountain/Mt-Bilu/20240523_195732.jpg”, alt: “Arrival in Taichung (抵達台中)” }, { src: “mountain/Mt-Bilu/20240523_200129.jpg”, alt: “Taichung Old Station Night View (台中舊火車站夜景)” }, { src: “mountain/Mt-Bilu/20240523_200137.jpg”, alt: “Station Area Serenity (車站前的寧靜)” } ]} />
Crossing that Gate: Hehuanshan Tunnel and Start (跨過那道門：合歡隧道與起登)
At 3 AM, we departed from Taichung, swaying along the way to Hehuanshan. Arriving at the tunnel entrance around 6 AM, the cold air instantly woke us up. We crossed the workstation by the tunnel and officially entered 820 Forest Road. It was a strange transition: one moment on asphalt, the next our feet were on wet fallen leaves.
<BlogGallery images={[ { src: “mountain/Mt-Bilu/20240524_054934.jpg”, alt: “Early Morning Hehuanshan (清晨的合歡山)” }, { src: “mountain/Mt-Bilu/20240524_054947.jpg”, alt: “Tunnel Entrance View (隧道口的展望)” }, { src: “mountain/Mt-Bilu/20240524_054949.jpg”, alt: “Ready to Start (準備起登)” }, { src: “mountain/Mt-Bilu/20240524_062023.jpg”, alt: “Hehuanshan Tunnel Start (合歡隧道起登點)” } ]} />
8.4 Kilometers of Psychological Warfare: 820 Forest Road (8.4公里的心理戰：820林道)
The first section of the climb maintained altitude around 2500 meters. This section wasn’t very steep, but the length really wore on your patience. The path was wet, with an earthy smell, and your feet kept getting annoyed by appearing gravel and fallen trees.
From Stroll to Survival Mode: 1.6K of Ultimate Steepness (從散步到生存模式：1.6K的極限陡升)
If you thought the first 8.4 km of forest road was just a warm-up, wait until after the water source - the trail will immediately snap you awake.
<BlogGallery images={[ { src: “mountain/Mt-Bilu/20240524_094514.jpg”, alt: “8.4K Sign (8.4K路標)” }, { src: “mountain/Mt-Bilu/20240524_094522.jpg”, alt: “Ready to Start Steep Ascent (準備開始陡升)” } ]} />
The slope is so steep you feel your knees hitting your chest. This section isn’t like the forest road where you can chat - every step you take must be checked for stability. This isn’t walking, this is climbing.
Hands and Feet Challenge: 9.6K Vertical Rock Wall (手腳並用的考驗：9.6K垂直岩壁)
Around 10:55 AM, we encountered the legendary two-story-high rock wall. While it looks scary, there are many foothold options, and there are ropes and chains nearby. I recommend putting away your trekking poles, freeing your hands, and checking your grip before moving.
<BlogGallery images={[ { src: “mountain/Mt-Bilu/20240524_113059.jpg”, alt: “Climbing Rope (攀爬拉繩)” }, { src: “mountain/Mt-Bilu/20240524_114336.jpg”, alt: “Rock Wall Details (岩壁細節)” }, { src: “mountain/Mt-Bilu/20240524_114641.jpg”, alt: “Teammate Climbing (攀爬中的隊友)” } ]} />
Final Sprint and Triangulation Point (最後的衝刺與三角點)
After crossing the rock wall, the view starts to open up. Reaching the main ridge junction, only 200 meters left to the summit. Though energy was running low, seeing the sign “Mount Bilu 0.2K”, my body automatically squeezed out one last bit of strength.
<BlogGallery images={[ { src: “mountain/Mt-Bilu/20240524_120114.jpg”, alt: “Ridge View (稜線展望)” }, { src: “mountain/Mt-Bilu/20240524_120120.jpg”, alt: “Alpine Landscape (高山地景)” }, { src: “mountain/Mt-Bilu/20240524_125028.jpg”, alt: “Main Ridge Junction Sign (主稜三叉路口路標)” } ]} />
12:30 PM, finally standing at the 3371-meter triangulation point. The summit had strong wind and fast-moving clouds, but seeing this beautiful scenery, honestly, all the pain from the steep ascent was worth it.
Chapter Three: Discussion and Consequences Warning (第三章：探討與後果警告)
Physical Prerequisites (體能的前提假設)
This 12-hour mountain route plan is based on the assumption that “you have solo 100-peak experience” and “can carry weight in continuous climbing”. If you’re a beginner, this 1.6 km steep section might take you over three hours - please start earlier.
Serious Consequences: Getting Lost in Dark (嚴重的後果：摸黑風險)
To ensure safety, I set 1 PM as the descent deadline. If you stay too long at the summit and delay descent, you might end up hiking the unstable collapse in the dark with exhausted energy. The risk increases dramatically. Don’t joke about safety.
Extended Thinking: Truth and Misconception in Digital Records (延伸思考：數位紀錄的真實與謬誤)
This GPX record showed a typical error. After logging the forest road points at 6 PM, a straight line to Taichung appeared. Analysis revealed this was recording continuing after logging the trail, creating jump errors from driving. This reminds us that when relying on digital tools, we must learn to judge data authenticity and not be misled by system-generated errors.
Mount Bilu is truly deserving of its “mid-level” designation. It lulls you into relaxation with 8.4 km of smooth paths, then teaches you what Hundred Peaks really mean with the last 2 km of steepness. If you want to feel this contrast, a solo Mount Bilu climb is absolutely the best choice.