Seoul to Tongyeong Road Trip: Route 1 Guide

The Seoul-to-Tongyeong route follows the historic Yeongnam Road, a trade artery since the Joseon Dynasty, now part of National Route 1. This corridor cuts through the central-western plains, offering a cross-section of Korean geography—from urban sprawl to rolling farmland and coastal cliffs.

Driving distance is approximately 300 kilometers (186 miles), typically taking 3.5 to 4 hours on the expressway. The fastest path uses the Gyeongbu Expressway (Expressway No. 1) south to Daejeon, then transfers to the Tongyeong–Daejeon Expressway (No. 35) for the final leg.

Road quality is consistently high with concrete barriers, guardrails, and rumble strips on curves. Frequent electronic signs alert to congestion and accidents. Emergency phones are placed every 1 km.

For families, child amenities are plentiful at rest areas: diaper-changing stations, children's play zones, and highchairs in food courts. Many rest stops have outdoor playgrounds. Pet-friendly policies vary: most rest areas allow leashed pets in outdoor picnic areas, but not inside buildings.

To combat fatigue, use the mandatory hazard lights rule: if you stop on the shoulder, activate hazard lights. Rest stops are spaced about 30 minutes apart, ideal for stretching. Hidden gems off-route include the Gojoseon Museum in Dangjin or the Maebongsan Tower in Gongju, both within 10 minutes of the highway.

For a more personalized approach to discovering lesser-known stops, learn how to find the best stops and hidden gems between cities using detailed maps and local tips.

Just south of Seoul, the Gyeongbu Expressway passes through the Gapyeong and Cheongju basins, where rice paddies and pear orchards dominate in spring and autumn. Further south, the Tongyeong–Daejeon highway winds through the Sobaeksan Range, with several panoramic overlooks.

UNESCO World Heritage Sites along the route include the Baekje Historic Areas in Gongju (tumuli and fortresses) and the Yangdong Folk Village near Gyeongju, a bit off-route but accessible. For local commerce, stop at Asan's traditional market for chestnuts and ginseng, or at Daejeon's Jungang-ro food alley.

Climatically, the route spans temperate zones: spring (March–May) brings cherry blossoms, while autumn (September–November) offers crisp air and foliage. Summers are hot and humid with frequent rain; check forecasts. The final descent into Tongyeong reveals a dramatic coastal vista of Hallyeohaesang National Park.

Tolls on the entire route amount to about ₩18,000 for a standard sedan, payable by Hi-pass or cash. Fuel costs depend on your car's efficiency; a typical mid-size sedan (12 km/L) will use roughly 25 liters, costing around ₩42,000 at current prices (₩1,700/L).

Rest areas appear every 20–30 kilometers, with notable ones like Cheonan Samgeori (southbound) and Geumsan Rest Area offering clean bathrooms, local food, and EV charging stations. All are well-marked.

• Speed limits: 110 km/h on most of Gyeongbu, 100 km/h on Tongyeong–Daejeon sections.
• Highway service plazas are open 24/7, with ATMs and convenience stores.
• Night driving is safe with full lighting and clear markings.