Mount Asog (Mount Iriga)– A Hidden Volcano Trek in Camarines Sur
- KGM Resorts
- 1 day ago
- 8 min read
The Overlooked Volcano of the Bicol Region
When travelers think of volcanoes in the Bicol Region, Mayon Volcano often steals the spotlight. But just 35 kilometers south, a lesser-known yet equally captivating giant rises quietly—Mount Asog, also called Mount Iriga. Towering at 1,196 meters above sea level, this dormant stratovolcano offers a blend of mystique, cultural heritage, and scenic adventure for those willing to veer off the beaten path.
Located in Iriga City, Camarines Sur, in the heart of the Bicol Peninsula, Mount Asog commands stunning views of Lake Buhi, neighboring Mount Isarog, and the Bicol lowlands. Its trails, though less crowded, reveal mossy forests, volcanic ridges, and a crater partially reclaimed by time and vegetation.
More than just a trekker’s delight, Mount Asog is steeped in local folklore. Legend speaks of a priest defying norms and transforming into stone—a tale as compelling as the island’s geologic past. For Bicol trekking enthusiasts, the mountain represents a sacred landscape, a natural observatory, and a spiritual refuge all in one.
If you're seeking a volcano trek that fuses breathtaking panoramas with cultural depth, Mount Asog deserves a spot on your adventure list.
Table of Contents
What to Bring and Travel Tips
Where is Mount Asog? – Location and How to Get There
Mount Asog, also known as Mount Iriga, is located in Iriga City, in the province of Camarines Sur, part of the Bicol Region in southern Luzon. It's situated approximately 35 kilometers southeast of Naga City and about 450 kilometers from Manila, making it a reachable destination for both regional and long-distance travelers.
How to Get There
From Naga City: You can take a van or bus bound for Iriga City, with travel time averaging 1 to 1.5 hours. Vans are typically faster but may cost slightly more than buses.
From Manila: Multiple bus lines (e.g., Philtranco, DLTB, Raymond) offer direct overnight trips to Iriga City, taking around 8–10 hours, depending on traffic and weather conditions.
Nearest Jump-Off Points
Sitio Ilian – Popular among local hikers and offers access through lush foothill forest.
Barangay San Nicolas – Another accessible trailhead known for panoramic views and connecting to older volcanic paths.
From Iriga’s city center, local tricycles or habal-habal (motorbike taxis) can take you to these jump-off points. It's advisable to coordinate with local tourism offices or guides ahead of your trip for updated trail conditions and permits.
Whether you're a seasoned mountaineer or an adventurous traveler, reaching Mount Asog is part of the journey—and it offers a taste of Camarines Sur’s hidden trekking potential.
Geological and Mythological Background
Rising to 1,196 meters above sea level, Mount Asog is classified as a dormant stratovolcano, shaped by ancient volcanic activity that once defined the landscape of Iriga and its surrounding plains. Geological records note a phreatic eruption around 1628, an event believed to have reshaped the mountain’s summit and contributed to the formation of its broad crater. Over centuries, vegetation reclaimed much of this crater, softening its volcanic scars into forested slopes and ridgelines visible today.
From a geological perspective, Mount Asog’s crater features—including uneven terrain, volcanic rock deposits, and altered drainage patterns—tell the story of a volcano that is quiet but far from lifeless. Its presence continues to influence local ecosystems, water flow toward Lake Buhi, and soil fertility in nearby agricultural areas.
Beyond science, Mount Asog history is deeply woven into Bicolano folklore. According to legend, the mountain was named after Asog, a Bicolano priest or shaman who defied social norms and spiritual conventions. As punishment—or transformation—he was said to have turned into stone, becoming the mountain itself. This story gave Mount Asog a reputation not just as a volcano, but as a moral and spiritual landmark embedded in collective memory.
Today, tales of the Iriga volcano eruption and the legend of Asog coexist—one grounded in geology, the other in cultural identity. Together, they shape how locals view the mountain: as a natural force, a cautionary tale, and a silent witness to generations of belief, resilience, and respect for nature.
What Makes Mount Asog Unique
Volcanic Crater with Forest Regeneration
Mount Asog's crater bears the marks of its phreatic eruption in the 1600s. Today, it's partially covered by dense secondary forest, a living showcase of nature’s resilience.
Panoramic Views
From the summit, hikers are treated to sweeping views of Lake Buhi, Mount Isarog, the Bicol plains, and even Ticao Pass on clear days—perfect for sunrise or sunset treks.
Beginner-Friendly Trail
The hiking route is rated easy to moderate, making it ideal for weekend warriors or beginners seeking their first volcano climb without needing technical gear.
Cultural Heritage Spots
The trail passes local shrines, the famed “Asog Stone,” and sacred spaces tied to indigenous and colonial narratives—making this a cultural as well as natural hike.
Trekking Experience – Trail Highlights
Trail Duration
Expect a 3 to 5-hour trek to reach the summit, depending on your chosen route and fitness level. The climb is accessible for beginners but still offers a rewarding challenge for seasoned hikers.
Trail Type & Terrain
The trail winds through dense forest canopies, volcanic rock paths, and open grassy ridges. Occasional steep inclines add a bit of thrill, while bird calls and cool breezes offer peaceful moments along the way.
Trailheads
The most common jump-off points are Sitio Ilian and Barangay San Nicolas. Some routes may pass near the “Asog Stone,” a sacred site linked to the mountain’s mythological origins.
Guides & Permits
Local guides are highly recommended for safety and local knowledge. Coordinate with the Iriga City Tourism Office or barangay officials. No national park permit is required, but local courtesy and fees may apply.
When to Start
Start early for sunrise summit views and cooler temperatures. Morning treks reduce exposure to the midday heat and improve chances for clear skies.
Weather Consideration
Avoid climbing during heavy rains or typhoon season. The trail can become muddy and visibility may drop, especially in the higher ridges.
Best Time to Visit
Dry Season: December to May
The ideal months to hike Mount Asog are during the dry season, particularly from December to May. During this period, the weather is generally more stable, the skies clearer, and the trails drier—making for safer hikes and better panoramic views of Lake Buhi, Mount Isarog, and the surrounding Bicol landscape.
Avoid the Monsoon Season
From June to October, the region experiences frequent rains and typhoons. Trails become muddy, slippery, and sometimes impassable. The summit is often shrouded in fog, limiting visibility and increasing risk during the ascent. For safety and enjoyment, it’s best to postpone treks during this season.
Sunrise Treks for Stunning Views
Aim to start your climb before dawn to catch the breathtaking sunrise from the summit. The golden morning light highlights the volcanic ridges and surrounding plains—perfect for photography and reflection. Early treks also help avoid the midday heat.
Nearby Attractions in Iriga & Bicol
Lake Buhi
Just a short distance from Iriga City, Lake Buhi is home to the sinarapan, the world’s smallest commercially harvested fish. The lake is not only ecologically unique but also scenic, offering boat rides and lakeside views that contrast beautifully with the rugged terrain of Mount Asog.
Mount Isarog Natural Park
A biodiversity haven and another volcanic giant in the Bicol region, Mount Isarog is perfect for nature lovers and trekkers. With its waterfalls, hot springs, and rich flora and fauna, it’s an ideal side trip for adventurers looking to explore more of Camarines Sur.
Tinagba Festival
Held every February in Iriga City, the Tinagba Festival is a vibrant celebration of local harvest and tradition. Expect colorful parades, carabao-drawn carts, and cultural performances that highlight the region’s deep agricultural roots and festive spirit.
Saint Anthony of Padua Cathedral
Located in downtown Iriga, this historic cathedral is a spiritual and architectural landmark. It’s a peaceful stop for reflection and offers a glimpse into the religious heritage of the city.
Cultural Importance and Environmental Protection
A Sacred Landscape Rooted in Heritage
Mount Asog is more than a geological feature—it's a spiritually significant site steeped in local Bicolano folklore. According to legend, the mountain is named after a priest or "asog" who defied social norms, symbolizing resilience and mysticism. This deep connection to ancestral beliefs lends Mount Asog a sacred aura, and many locals regard it with reverence.
Biodiversity and Forest Regeneration
As a dormant volcano, Mount Asog supports thriving ecosystems across its slopes. The forest trails are home to native flora and diverse bird species, especially in reforested and naturally regenerated zones near its crater. This makes it a valuable site for conservation-focused treks, contributing to broader environmental awareness in the region.
Community-Led Eco-Tourism
Local communities, particularly from Barangays Songco and San Nicolas, play a crucial role in Mount Asog’s eco-tourism. They serve as guides, stewards, and storytellers, ensuring that tourism remains respectful of both the environment and the mountain’s cultural significance. This grassroots involvement promotes sustainable livelihoods and helps maintain trail integrity and visitor safety.
What to Bring and Travel Tips
Essentials for the Hike
Mount Asog may be beginner-friendly, but it's still a volcano—with uneven terrain and unpredictable weather. Be sure to pack the following:
Hiking shoes with good grip for volcanic soil and grassy slopes
Water (at least 1.5–2 liters) to stay hydrated
Trail snacks for energy—preferably easy-to-carry like granola bars or nuts
Sun protection: sunscreen, sunglasses, and a hat
Camera or phone: The summit views are worth capturing!
Safety Gear
While it’s not an extreme climb, bringing a few safety items adds peace of mind:
Walking stick or trekking pole: helpful for descents
Raincoat or poncho: conditions can shift quickly in the highlands
First aid kit: for minor cuts, blisters, or altitude-related discomfort
Environmental Etiquette
Mount Asog is not just scenic—it's culturally sacred and ecologically sensitive. Practice these responsible travel habits:
Leave No Trace: Pack out what you pack in
Respect the flora and fauna—don’t pick plants or disturb wildlife
Honor local customs—some areas may be considered sacred by locals
Takeaway – Discover the Volcano of Stories and Scenic Views
Mount Asog may not have the international fame of Mayon, but what it offers is a unique blend of mystery, beauty, and accessibility. From its cratered summit with sweeping views of Lake Buhi and the Bicol plains, to its deep roots in local mythology and culture, this volcano is more than just a climb—it’s a journey into the heart of Camarines Sur’s hidden wonders.
For nature lovers, weekend adventurers, and cultural travelers, Mount Asog provides a rewarding trek without the extreme difficulty of taller peaks. Whether you’re here to chase sunrise views, explore sacred legends, or simply reconnect with nature, this sleeping volcano invites you to walk its trails with reverence and curiosity.
Share your trek experience online, tag your photos, and always remember to hike responsibly honoring the environment, local culture, and the quiet stories that make Mount Asog unforgettable.
Frquently Asked Questions
Is Mount Asog safe to climb?
Yes, Mount Asog is considered safe for trekking during the dry season (December to May). However, weather conditions can change rapidly, so always check local advisories before your trip.
Are guides required?
While not mandatory, hiring a local guide is highly recommended for first-timers. They can assist with navigation, ensure your safety, and share insights into the local ecology and culture.
Can beginners hike Mount Iriga?
Absolutely. Mount Asog is a great entry-level climb for beginner hikers. The trail is relatively short compared to other volcanoes, though it still requires moderate fitness and care.
Are there restrooms or facilities at the site?
No. There are no formal restroom or commercial facilities along the trail or at the summit. Bring your own provisions and practice Leave No Trace principles.
How long is the trek?
The hike typically takes 3–5 hours roundtrip, depending on your pace, weather, and starting point (Sitio Ilian or San Nicolas trailhead).
Mount Asog, where the sun rises over the volcano, casting a warm glow over the landscape, a true gem in Camarines Sur!