Phu Hin Rong Kla

Introduction: Where Unusual Geology Meets Cold War History

Straddling the rugged mountainous borders of Phitsanulok, Phetchabun, and Loei provinces, Phu Hin Rong Kla National Park is one of Thailand's most unique national parks. Spanning 307 square kilometers across the Luang Prabang mountain range, this high-altitude sanctuary combines strange geological rock plateaus, pine forests, cascading waterfalls, and cool mountain weather with a compelling historical past as the former headquarters of the Communist Party of Thailand (CPT) during the 1960s and 1970s.

Situated over 1,000 meters above sea level, Phu Hin Rong Kla offers an invigorating mountain escape where nature trails link fractured rock fields, cliff viewpoints, and preserved insurgent-era military camps.

Key Attractions & Geological Wonders

Phu Hin Rong Kla is renowned for its surreal rock formations and historical landmarks:

1. Lan Hin Pum (Knobbed Rock Field)

The signature natural icon of the park—a dramatic cliffside plateau covered with thousands of knob-like, rounded stone protrusions formed by natural erosion and faulting. During the insurgency, CPT students used these unique stone formations as natural shelters from aerial bombardment.

2. Lan Hin Taek (Fractured Rock Plateau)

A vast field of deeply cracked and split sandstone rock sheets forming narrow crevices and mini-canyons. The cracks are filled with orchids, mosses, ferns, and wild seasonal flowers.

3. Pha Chu Thong & Political and Military School

A historic cliff viewpoint where insurgents raised the red victory flag. Nearby lies the preserved Political and Military School—wooden huts hidden beneath evergreen canopies where communist combatants were trained.

4. Paper Flower Field & Maple Trees

Located near the Royal Forest Development Project inside the park, a stunning field of colorful paper flowers blooms along dramatic cliff edges in winter. Surrounding maple trees turn vibrant red during the cool season.

Key Highlights & Attraction Summary

• 307 Sq Km Mountain Park: High-altitude pine forests, orchids, and cooling year-round breezes.
• Lan Hin Pum & Lan Hin Taek: World-famous knobbed and fractured sandstone rock plateaus.
• Cold War Historical Relics: Preserved Communist Party camps, air raid hides, and flag cliffs.
• Wild Cherry Blossom Proximity: Neighboring Phu Lom Lo and Ban Rong Kla feature pink sakura blooms in winter.

How to Reach Phu Hin Rong Kla

Located along Route 2331, reachable from Phitsanulok or Phetchabun (Lom Sak / Phu Tub Berk).

By Rental Car or Private Driver (Recommended)

From Phitsanulok city (approx. 120 km / 2 hours), drive via Highway 12 to Nakhon Thai and ascend Highway 2331. From Phetchabun, drive via Lom Sak and Route 2331 past Phu Tub Berk into the park entrance.

Best Time to Visit

Highland climate varies seasonally across the year.

Cool Season (November to February)

The peak travel window! Temperatures drop to 8°C–16°C, paper flowers and wild orchids bloom, and red maple leaves paint the forest canopy. Nearby Phu Lom Lo blooms pink with Wild Himalayan Cherry Blossoms in January.

Top Nearby Attractions

1. Phu Tub Berk (25 km south)

Phetchabun's highest peak (1,768m) famous for sea-of-mist cloudscapes and endless Hmong cabbage terraces.

2. Phu Lom Lo Cherry Blossom Mountain (15 km east)

Thailand's largest Wild Himalayan Cherry Blossom field covering entire mountain ridges in pink in January.

3. Wat Pha Sorn Kaew (50 km south)

A striking mountain temple in Khao Kho featuring five sitting white Buddha statues and mosaic tile pagodas.

Things to Do at Phu Hin Rong Kla

• Walk the Lan Hin Pum Circular Trail: Hike through knobbed rock fields to Pha Chu Thong cliff.
• Explore the CPT Military Hides: Tour preserved wooden barracks, weapon sheds, and medical clinics.
• Photograph Paper Flowers & Red Maples: Visit the Royal Forest Project during winter blooms.
• Camp in Pine Woods: Enjoy cool mountain nights under pine trees at the park headquarters campsite.

Local Food and Culinary Delights

Food stalls and restaurants operate near the visitor center and Ban Rong Kla village.

Must-Try Culinary Specialties

• Hot Kai Kata & Noodle Soups: Warm breakfast dishes served at Ban Rong Kla village cafes.
• Wild Herb Som Tum & Grilled Chicken: Local Isan papaya salad, sticky rice, and grilled pork served at park entrance stalls.
• Highland Arabica Coffee: Hand-drip mountain coffee brewed at village viewpoint cafes.

Where to Stay: Accommodation Options

Visitors stay inside national park cabins, campsites, or local homestays.

Park Cabins & Village Homestays ($15 – $70 USD / 500 – 2,500 THB)

• Phu Hin Rong Kla Park Bungalows & Tents: Cabins and rental tents managed by the Department of National Parks near the headquarters.
• Ban Rong Kla Pink Village Homestays: Cozy hill-tribe homestays and glamping sites overlooking cherry blossom valleys.

Budget Travel Guide & Admission Fees

• National Park Entrance Fee: Foreign adult admission is **500 THB** (300 THB for children) / 40 THB for Thai citizens, plus a 30 THB vehicle permit.
• Park Opening Hours: Open daily from **06:00 AM to 06:00 PM**.
• Affordable Camping: Bringing your own tent to park campsites costs only **30 THB** per person per night.

Sample 1-Day Itinerary

• 08:00 AM: Depart Phu Tub Berk or Phitsanulok via rental car along Route 2331.
• 09:30 AM: Arrive at **Phu Hin Rong Kla Visitor Center**; visit the CPT history museum.
• 10:15 AM: Walk the **Lan Hin Taek** fractured rock trail.
• 11:30 AM: Walk the circular **Lan Hin Pum** trail to view knobbed rock fields and **Pha Chu Thong** cliff.
• 01:00 PM: Tour the preserved **Political and Military School** wooden barracks.
• 02:30 PM: Enjoy local *Som Tum* lunch and hot coffee at **Ban Rong Kla Village** viewpoint.
• 04:00 PM: Visit the **Paper Flower Field** before returning down Route 2331.

Essential Rules and Visitor Guidelines

• Wear Proper Footwear: Walking across uneven rock plateaus requires sturdy sneakers or hiking shoes.
• Warm Clothes Essential: Winter temperatures drop significantly—bring jackets, beanies, and warm trousers.
• Preserve Geological Formations: Do not deface or carve onto sandstone rock formations.

Frequently Asked Questions (FAQs)

1. Where is Phu Hin Rong Kla National Park located?

It is located along the border of Phitsanulok, Phetchabun, and Loei provinces in Northern Thailand.

2. What are the signature rock formations inside the park?

**Lan Hin Pum** (knob-like rock formations) and **Lan Hin Taek** (deeply fractured rock sheets).

3. What is the historical significance of the park?

It served as the primary stronghold and headquarters for the Communist Party of Thailand (CPT) during the 1960s and 1970s.

4. How much is the entrance fee?

Foreign adult admission is **500 THB** (300 THB for children) plus 30 THB for vehicle entry.

5. What is the best season to visit?

The cool season from **November to February** for crisp air, paper flowers, red maples, and sakura blooms at Phu Lom Lo.

6. How do you reach the park from Phitsanulok?

Take a 2-hour drive via Highway 12 to Nakhon Thai and ascend Route 2331.

7. What nearby cherry blossom destination can be combined?

**Phu Lom Lo** and **Ban Rong Kla Village**.

8. Are there waterfalls inside the park?

Yes, including **Man Daeng Waterfall**, **Romklao Waterfall**, and **Phradon Waterfall**.

9. What local food should I try nearby?

Isan papaya salad (*Som Tum*), sticky rice, and highland arabica coffee.

10. What are the operating hours?

Open daily from **06:00 AM to 06:00 PM**.

Conclusion

Phu Hin Rong Kla National Park stands out as one of Thailand's most intriguing highland destinations, where knobbed sandstone plateaus at Lan Hin Pum, cracked rock sheets at Lan Hin Taek, Cold War communist insurgent history, paper flower cliffs, and nearby cherry blossom valleys converge in Northern Thailand. From exploring hidden military school barracks to photographing unusual rock formations and watching sunrise over mountain ridges, Phu Hin Rong Kla delivers an unmissable adventure. Plan your trip, pack warm jackets, and explore Phu Hin Rong Kla Phetchabun!