Beppu to Suwon Road Trip: Essential Driving Guide

Beppu, on Japan's Kyushu island, sits at the edge of the volcanic Hells of Beppu, while Suwon, 20 kilometers south of Seoul, is anchored by the UNESCO-listed Hwaseong Fortress, built in the late 18th century. The most direct driving route involves taking the Kanmon Bridge from Kyushu to Honshu, then the Seto Ohashi Bridge to Shikoku, and finally the Tsushima ferry to Busan, South Korea, followed by a drive on the Expressway 1 north to Suwon. Total driving time, including ferry waits, is roughly 20 hours, but with overnight stays, plan for at least three days. This guide assesses whether the drive is worth it and highlights the best stops Beppu to Suwon, while also offering practical tips on fuel, rest, and attractions.

Fuel costs average 160 yen per liter in Japan and about 1,700 won in South Korea. A round trip of roughly 1,200 kilometers by car consumes approximately 80 liters, totaling around $200 in Japan and $80 in South Korea. Toll fees on Japanese expressways can be substantial; a Japan Expressway Pass can save frequent travelers, but for a one-way trip, plan for about 15,000 yen in tolls. South Korean expressways charge per distance, expect around 20,000 won. The ferry from Tsushima to Busan takes about 3.5 hours and costs from 30,000 yen per car and driver.

• Carry an international driving permit (IDP) and your passport for border crossings.
• Japanese speed limits range 80-100 km/h; South Korean highways limit at 110 km/h, enforced by cameras.
• Rental cars in Japan often don't allow one-way drop-off in South Korea; consider returning the car in Fukuoka and renting locally after the ferry.

The Beppu area is known for its geothermal activity, including the 'Hells' like Umi Jigoku, a cobalt-blue pond, and the sand baths at Takegawara. As you drive east, the landscape shifts to the mountainous interior of Honshu, with cedar forests and river valleys. Around Hiroshima, consider a detour to Miyajima, where the floating torii gate is a photogenic stop. On reaching Busan, the coastal highway to Suwon offers views of the Yellow Sea, and near Suwon, the fortress walls trace a ridge above the city. Local commerce along the route varies from roadside peach stands in Okayama to seafood markets in Busan; all are convenient for picking up regional specialties. Key stop: the Yunokawa Onsen town, midway through the drive, is a less touristy alternative for a break.

Road quality is excellent in both countries, with well-lit tunnels and guardrails on mountain sections. In Japan, service areas (SAs) every 40-50 km offer restrooms, restaurants, and sometimes hot springs. In South Korea, rest stops are frequent but sparser; plan fuel at expressway stations. For families, attractions like the Beppu Ropeway or the Onsen Science Museum provide educational breaks. Pet-friendly infrastructure: Japan requires pets in carriers, and most SAs have rest areas; South Korea allows pets in some rest stops, but they may need a leash. To combat fatigue, everyone is legally required to take 15-minute breaks every 2 hours in South Korea; Japan enforces a similar guideline. Hidden off-route spot: the Kitsuki Castle town, a 30-minute detour from the main highway, offers samurai quarter streets without crowds. For finding other hidden gems, use this guide on how to find the best stops and hidden gems between cities. Always check weather: typhoons in September can cause landslides, while winter brings snow on the Honshu mountains.