Deo Ca Pass in Phu Yen: Discover the Most Beautiful Tunnel Road in Vietnam

Deo Ca Pass in Phu Yen is a masterpiece of nature, with its winding and rugged mountain roads running alongside the vast coastline. It is also considered one of the largest mountain passes in Vietnam. If you ever visit Phu Yen, don’t miss the chance to ride up Deo Ca and witness the majestic landscape with your own eyes. Let Vietjet take you on a journey to explore all the fascinating things about Deo Ca!

Deo Ca is considered one of the largest mountain passes in Vietnam.

1. Overview of Deo Ca Pass in Phu Yen

1.1 Where is Deo Ca located?

Deo Ca is one of the largest and most challenging mountain pass routes in Central Vietnam, located in the Truong Son mountain range, connecting the two provinces of Phu Yen and Khanh Hoa. As such, the pass spans both Dong Hoa town in Phu Yen and Van Ninh district in Khanh Hoa.

Deo Ca is about 12km long and approximately 33 meters above sea level. It is also one of the few mountain passes in Vietnam that runs along the coastline. From the top of the pass, you can enjoy a breathtaking panoramic view of nature, with layers of green from the mountains, sky, and sea combining to create a truly majestic and magnificent landscape.

1.2 How long is Deo Ca Tunnel?

Stretching 13.5km through the Dai Lanh mountain range, Deo Ca Tunnel in Phu Yen is one of the longest and most modern road tunnels in Vietnam, second only to Hai Van Tunnel. It is a key infrastructure project on National Highway 1, connecting the central regions of Vietnam and shortening the distance between Phu Yen and Khanh Hoa.

The tunnel was built with a focus on safety, speed, and convenience for vehicles traveling through Deo Ca. Inside the tunnel are access roads and two main tunnels equipped with advanced safety systems. The arched roof is reinforced with durable concrete and steel, and the tunnel is fitted with modern lighting and ventilation systems.

2. The Historical Story of Deo Ca

Deo Ca in Phu Yen is not only a scenic travel route but also a place steeped in the heroic history of the Vietnamese people.

As early as the 15th century, King Le Thanh Tong had a large stone mountain, Da Bia, erected at the top of the pass as a boundary marker between Vietnam and the Champa Kingdom. Later, it became a strategic battleground during fierce conflicts between Nguyen Anh and the three Tay Son brothers—Nhac, Lu, and Hue—for control over southern Vietnam. It was also the site of significant battles during the Đại Việt campaign against Champa to protect national sovereignty. Notably, in 1974, Deo Ca was the setting for major resistance campaigns led by the Viet Minh against French colonial forces.

Despite witnessing many historical ups and downs, Deo Ca still stands tall and proud today, continuing to contribute to the nation’s development and infrastructure.

Da Bia Mountain once served as a landmark dividing the border between Vietnam and the Champa Kingdom.

3. How to Get to Deo Ca

3.1 Getting to Phu Yen

Currently, Vietjet operates many domestic flights from Ho Chi Minh City and Hanoi to Tuy Hoa Airport in Phu Yen. These flights are relatively short and affordably priced, making travel more convenient and budget-friendly.

Alternatively, you can reach Phu Yen by long-distance bus, which is a more economical option (averaging around 550,000 VND per ticket), though the journey is considerably longer—approximately 11 hours.

Vietjet now offers many domestic flights from Ho Chi Minh City and Hanoi to Tuy Hoa Airport, Phu Yen.

3.2 Getting to Deo Ca

Once in Phu Yen, it is highly recommended to rent a motorbike to explore Deo Ca. You’ll depart from Dong Hoa town and follow National Highway 1 through the Dai Lanh mountain range. After about 12km of winding roads, you’ll reach the summit of the pass, where a stunning natural panorama unfolds before your eyes.

4. Highlights of Deo Ca Pass

4.1 A breathtaking and challenging route

Deo Ca in Phu Yen is a stunning yet rugged mountain pass, with winding, steep curves that challenge even the most experienced riders. This route demands solid driving skills and prior experience navigating mountain roads. While riding up the pass, you must stay highly alert and avoid being careless or distracted. In return for your efforts, you’ll be rewarded with a majestic natural panorama that opens up before your eyes—so breathtaking that you’ll be reluctant to leave.

4.2 A majestic and vibrant natural landscape

Deo Ca in Phu Yen is blessed with a favorable geographical location and pristine natural beauty that lasts all year round. When visiting, you’ll enjoy the fresh, cool air and admire the unspoiled scenery: lush green forests, deep blue seas, open skies, and opportunities to engage in outdoor activities like hiking, fishing, or sea excursions. During the rice harvest season, golden rice fields stretch endlessly like giant natural carpets. Deo Ca is also home to various rare wildlife species such as porcupines, black bears, pangolins, and crested pheasants. Additionally, the area around the pass features beautiful bays and beaches that attract many tourists each day.

4.3 A perfect “Instagrammable” spot

Thanks to its spectacular natural scenery, Deo Ca in Phu Yen is one of the most popular check-in spots for travelers. You’re guaranteed to snap some truly unique and impressive photos here. No need for filters or fancy editing apps—just lift your camera, and the poetic mountains and sea will provide the perfect backdrop for stunning, unforgettable moments.

4.4 Explore nearby tourist attractions

Besides Deo Ca, Phu Yen is also known for many other breathtaking landmarks you shouldn’t miss:

Vung Ro Bay: Considered one of the most beautiful resorts in Asia, this bay offers crystal-clear waters, a rich variety of seafood, and vibrant coral reefs.
Mui Dien Lighthouse: Known as the earliest sunrise spot in Vietnam, this is a famous check-in location in Phu Yen. To reach the lighthouse, you’ll climb about 1km of steps.
Bai Mon Beach, Phu Yen: Nestled between two towering mountains, this beach creates a majestic and impressive natural scene. Bai Mon remains unspoiled and tranquil, perfect for those seeking peace and fresh sea air.

Mui Dien Lighthouse (Dai Lanh Lighthouse) is known as the earliest place to welcome the sunrise in Vietnam.

5. Travel tips for exploring Deo Ca by motorbike

Here are a few important things to keep in mind when traveling through Deo Ca by motorbike:

If traveling with friends or family, choose the most experienced riders to drive.
Always follow and pay attention to road signs and warnings along the pass.
Bring sun protection essentials like sunscreen, jackets, hats, and masks.
Do not litter along the pass.

The above tips and insights aim to help you plan an enjoyable trip to Deo Ca in Phu Yen.Don’t miss the chance to book flight tickets to Phu Yen, and check out Vietjet’s 0 VND ticket promotions for both domestic and international routes from 12:00 to 14:00 daily.

You can also stay updated on flight schedules and international ticket promotions via Vietjet’s official information channels.