Ha Long to Danzhou Road Trip: Best Stops & Drive Times

Beginning in Ha Long, you'll traverse the northeastern edge of Vietnam's Quang Ninh province, crossing into China via the Mong Cai border gate before descending the Guangxi coast toward Danzhou on Hainan Island. The route combines expressway driving with a ferry crossing over the Qiongzhou Strait. The key milestone: the 563-km direct highway distance splits into about 300 km in Vietnam and 263 km in China, plus a 1-hour ferry.

This guide answers the three questions travelers ask most: best stops Ha Long to Danzhou, how long to drive Ha Long to Danzhou, and is it worth driving Ha Long to Danzhou. Along the way, we'll cover things to do between Ha Long and Danzhou—from limestone karsts to tropical beaches.

Note: The drive is 8–10 hours without overnight stops, so plan for at least a 2-day journey to enjoy the highlights. Click here for a broader approach to how to find the best stops and hidden gems between cities.

As you leave Ha Long, the UNESCO-listed karst seascape unfolds along the Bay of Tonkin. Further north, the scenery shifts to rice paddies and sugarcane fields. After crossing into China, the Guangxi mountains give way to coastal flatlands. The drive's most striking natural feature is the limestone karst formations around Dongxing and Fangchenggang, part of the national geological park—though less dramatic than Ha Long, they're worth a quick photo stop.

Local commerce thrives at every rest stop. In Vietnam, roadside fruit stalls sell fresh lychees and green oranges; in China, expect dried seafood and pearls at market towns like Dongxing. For a cultural interlude, visit the Jing Island (Wutou Island) near Fangchenggang, home to the Jing ethnic group, whose fishing villages offer a glimpse of traditional coastal life. Skip the touristy souvenir shops at border towns; instead, enjoy a bowl of pho or a hotpot at a local diner.

Both Vietnam's QL18 and China's expressways are in good condition, but the Vietnamese segment has sharp curves and occasional livestock crossings—drive cautiously. On the Chinese side, road quality is excellent, but watch for trucks. For families, the stretch between Fangchenggang and Haikou offers child-friendly attractions like the Beibu Gulf Ocean Park and the Haikou Volcanic Cluster Global Geopark, both with picnic facilities. For pets, China requires a health certificate and vaccination record; some hotels in Danzhou accept dogs, but confirm in advance. Most rest areas in China have pet relief zones.

Fatigue is a real risk on an 8-hour drive. Plan breaks every 2 hours: in Vietnam, the Cau Vong rest stop near Tien Yen offers coffee and a view of the bay; in China, the Dazhushan service area on the G75 has a restaurant and a small convenience store. The border town of Dongxing is the best place for a mid-point overnight stay; its night market serves Vietnamese-Chinese fusion dishes.

In Vietnam, use QL18 from Ha Long to Mong Cai, a well-paved national road with moderate traffic. At Mong Cai, cross the border via the Bac Luan Bridge into Dongxing, China. On the Chinese side, take the G75 Lanhai Expressway south to Nanning, then switch to the G75/ G15 towards Haikou. The entire Chinese leg is tolled; expect to pay around ¥200–300 (US$30–45). Fuel costs average VND 22,000 per liter in Vietnam and RMB 7.50 per liter in China. Budget roughly VND 1.5 million (US$63) for gasoline for the whole trip.

Border crossing formalities take 30–60 minutes if you have your vehicle's paperwork and visa. Ensure you have the car's registration, international driving permit, and liability insurance valid in both countries. Note that Chinese customs may require a temporary import permit.

• Vietnam highway: QL18, 80–100 km/h speed limit, many cameras.
• China expressway: G75, 120 km/h, toll gates every 50 km.
• Ferry between Haikou and Xuwen: 1 hour, cars cost ¥300–400 (US$45–60).