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Korean summer runs June through August, and it's the season the country shows off — emerald water on the East Coast, the South Sea scattered with islands, Jeju's lava-rock beaches, and cool mountain air an hour or two out of Seoul.

The catch is that the best of it sits exactly where the trains and buses don't go. The other catch is the weather: there's a monsoon, and there's real heat.

Both are easy to plan around once you know how, and a car turns them from problems into options. Miss the rain in one region, you drive to another. Too hot at sea level, you climb into the highlands where it's several degrees cooler. 

So the question isn't whether to road-trip Korea in summer. It's where you should point the car and how to time it so the weather works for you, not against you.

What's the Best Summer Road Trip in Korea for You? 

Pick your route by what you're chasing: beaches (East Coast or Jeju), island scenery (the South Coast or, again, Jeju), or a break from the heat (the Gangwon highlands, several degrees cooler than the city). One thing ties all three together: nearly all of it is far easier with a car.

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🌊 If You Love Beaches → East Coast or Jeju 

For sand and surf, head to the East Coast or Jeju. 

The East Coast around Gangneung, Yangyang, and Sokcho has the white-sand beaches and the surf scene, and the drive up National Route 7 hugs the sea most of the way. 

Jeju counters with its own coastline — Hamdeok and Hyeopjae, where the water turns that postcard shade of turquoise against black volcanic rock. Either way, the coast drive is half the point.

🏝️ If You Want Island Escapes → South Coast or Jeju 

If island scenery is your thing, the South Coast and Jeju deliver Korea's most tranquil summer views. 

Between Busan, Tongyeong, and Geoje, the sea fills up with islands you can reach by bridge or short ferry. Jeju has its own offshore add-ons, like Udo. This is the quiet, slow side of a Korean summer.

🏔️ If You Want to Beat the Heat → Gangwon Mountains 

To escape the worst of the heat, climb into the Gangwon highlands — they run several degrees cooler than Seoul. 

Pyeongchang and Jeongseon sit high enough that summer afternoons feel genuinely different from the city, with sheep ranches, cave trails, and the cabbage-field highlands of Anbandegi. Best part: it's only about two to two and a half hours from Seoul.

🚗 The Common Factor — A Rental Car 

Almost every spot worth the trip is scattered across areas where public transport is thin or slow.

A bus might get you to a city. It won't get you along a coast road on your own schedule, or up to a highland ranch, or around an island. One rental car lets you build the trip around your style, then reshuffle it around the weather, which in a Korean summer matters more than most visitors expect.

Choose Your Summer Drive: 4 Routes 

Four routes, four moods: a beach-and-café run up the East Coast, a full loop of Jeju, an island-hop along the South Coast, and a cool-air escape into the mountains. Here's what each one actually looks like on the ground.

Source: Unsplash

🌊 Route 1 — East Coast Gangneung Beach Drive: Gangneung & Sokcho 

Best for couples and groups who want beaches, good coffee, and a bit of surf, this is the classic Korean summer coast drive. Base it on Gangwon's East Coast and follow the water north.

Start in Gangneung. Gyeongpo Beach is the East Coast's largest stretch of sand, nearly two kilometers backed by pine forest, and it gets busy; it's one of the most popular beaches in the country. 

A short hop away, Anmok Beach has become Korea's unofficial coffee capital, a waterfront strip of independent roasters known as Anmok Coffee Street. Gangneung beach days tend to go like this: swim in the morning, coffee in the afternoon, repeat.

Push north into Yangyang for the surf. 

Surfyy Beach is one of Korea's best-known dedicated surfing beaches, and it comes with a surf school and a beach-club scene that gets lively after dark. 

One thing to know: you surf at Surfyy, but swimming happens at the fenced-off beach next door, so bring the board. A lesson costs around ₩60,000 (about $40).

Carry on to Sokcho, where Yeonggeumjeong Pavilion sits at the end of a fifty-meter bridge built out over the rocks, a favorite for sunrise over the East Sea. 

Just north in neighboring Goseong, on the same coastal stretch, the cliff-top Cheongganjeong pavilion is one of the region's eight classic scenic views. Threading it all together is National Route 7, Korea's great east-coast highway and one of the most scenic drives in the country.

Seoul to Gangneung is about 200 km on the Yeongdong Expressway through the Taebaek Mountains, normally two and a half to three hours. Lean toward the longer end on summer weekends, when the mountain sections back up. 

Pick up at Seoul Station or the Gangneung Station branch, give it two to three days, and a sedan or EV is plenty.

🏝️ Route 2 — Jeju in Summer: The Coastal Loop 

Best for resort-style beach holidays, families, and anyone who likes a camera in hand, spending Jeju in summer means circling the island on its coastal ring road. Jeju packs more into one loop than anywhere else in Korea.

The beaches do a lot of the work. Hamdeok and Hyeopjae are the swimmable headliners, shallow, clear, and framed by black lava rock. Iho Tewoo, barely ten minutes from the airport, is the one with the red-and-white horse-shaped lighthouses, which makes it a perfect first or last stop. 

Inland and along the coast, the landmarks come fast: Seongsan Ilchulbong, the dramatic Sunrise Peak that UNESCO inscribed as a World Heritage site in 2007; the dome of Sanbangsan in the southwest; and the Jusangjeolli Cliffs, a wall of hexagonal basalt columns dropping into the sea. 

Admission to most of these is small (Seongsan is around ₩5,000, about $3; the Jusangjeolli Cliffs are around ₩2,000, about $1.30).

A word on Udo, the little island off Seongsan: it's a fifteen-minute ferry, and it's lovely, but you generally can't take a rental car across. Jeju restricts private rental cars on Udo, so park at Seongsan Port and switch to the island's shuttle bus, an electric scooter, or a rented bike. 

It's part of the fun.

The coastal ring road runs roughly 181 km the whole way around, which works out to about three to four hours of pure driving before you stop for anything. On Jeju, you'll stop constantly. An EV suits the island well; charging is widespread, and a rental EV sidesteps Jeju's low-ish fuel logic for short daily hops. 

Pick up at Jeju Airport's Auto House, plan three to four days, and book early — summer is peak season here, so reserve two to three weeks out.

⛵ Route 3 — South Coast Island Drive: Busan to Tongyeong & Geoje 

Best for travelers who love archipelago scenery without committing to a full Jeju trip, this short run links Busan, Tongyeong, and Geoje along Korea's island-strewn south coast. It's the most relaxed of the four.

Tongyeong earns its nickname, the "Naples of Korea": a working port city looking out over a maze of islands, with a hillside mural village and a long sea cable car. 

Over on Geoje, Windy Hill gives you grassy clifftops and a photogenic windmill, and the Haegeumgang coastal road threads past sea-carved rock formations. The showpiece is Oedo-Botania, a private garden island about four kilometers offshore, reachable only by ferry, usually paired with the Haegeumgang cruise, with no cars on the island itself. 

These waters sit within Hallyeohaesang Marine National Park, one of Korea's loveliest stretches of protected coast.

What makes the loop easy is the Geoga Bridge, the bridge-and-tunnel link that connects Busan to Geoje in under an hour, where the old land route took more than two. Pick up at Gimhae Airport or the Busan Station branch, give it one to two days, and an SUV earns its keep on the coastal roads and with the luggage. 

🏔️ Route 4 — Mountain Escape: Pyeongchang & Jeongseon 

Best for beating the heat and getting into nature, this highland route trades sea level for cool mountain air about two to two and a half hours from Seoul. When the cities hit their muggy peak, this is where Koreans go.

Pyeongchang is ranch country. 

The Daegwallyeong Sky Ranch is a vast highland pasture you tour by tractor wagon up to a ridge-top observatory, and the nearby Daegwallyeong Sheep Farm (Korea's original, sitting around 850 meters up) is at its greenest from June through August. Alpensia Resort, a 2018 Winter Olympics venue, anchors the area year-round.

Over in Jeongseon, the Haneulgil "sky trail" delivers the highland views, and Hwaam Cave does something stranger: it's a former gold mine, one of the country's largest in its day, reborn as a themed cave you reach by a short monorail ride. Admission is around ₩7,000 (about $4.60), with the monorail on top. 

For the signature shot, Anbandegi is a cabbage-farm plateau at roughly 1,100 meters, famous for sunrises and, on clear nights, the Milky Way — though the late-June-to-July rainy stretch is the wrong window for stargazing, so time it for a clear spell.

https://www.youtube.com/watch?v=nC2zI1Hury4

The payoff is the air. These highlands run noticeably cooler than Seoul, generally on the order of five to seven degrees Celsius, which on a 32-degree city day is the difference between wilting and hiking. Pick up at Seoul Station or Gangneung Station, plan one to two days, and take an SUV for the mountain roads.

Which Route Fits You? 

Match the route to where you land and how long you've got. Quick guide:

• Arriving at Incheon or based in Seoul: the East Coast Beach Drive or the Mountain Escape, both around two to three hours out.

• After a resort-and-beach holiday: the Jeju Coastal Loop.

• Entering through Busan (KTX or Gimhae Airport): the South Coast Island Drive.

• Got a week or more: combine — East Coast plus the Gangwon mountains, or Busan with the South Coast islands.

Practical Tips for Summer Driving in Korea 

Korean summers are hot, humid, and briefly very wet — and completely drivable with a plan. Know the monsoon window, dodge the midday heat, book early, rest often, and download the right map before you fly.

Source: Unsplash 

🌧️ Plan Around the Monsoon (Jangma) 

Korea's monsoon, called jangma, usually runs from late June to late July and lasts about a month. 

According to the Korea Meteorological Administration, more than half of the country's annual rainfall falls during this stretch, when a stationary front parks over the peninsula. The dates shift year to year, so don't treat them as fixed.

This is exactly where a car pays off. Check Naver Map for live road conditions before you set out, and if one region's socked in, drive to one that isn't. During heavy rain, watch for low visibility and the odd flooded section, and don't push through standing water.

🥵 Beat the Heat & Humidity 

Expect daytime highs around 28–33°C and, in July, humidity of 80–90% — so it feels hotter than the thermometer says. 

The KMA puts July humidity at 80 to 90 percent nationwide, and recent summers have broken records, with Seoul touching 37.1°C in July 2025 — its highest reading for early July (the first ten days of the month) since July records began in 1908.

The fix is timing. Keep outdoor sightseeing out of the 11 am to 3 pm window; drive at dawn or after sunset, when the light's better anyway; and rehydrate at rest stops. And never leave valuables, or people or pets, in a parked car; cabins turn into ovens fast in this heat.

📅 Book Early — Summer Is Peak Season 

Reservations open 90 days ahead for Jeju and 120 days ahead elsewhere, and the popular vehicles go first. SUVs and EVs are the ones to lock in two to three weeks out. Late July to early August is the crunch, when overseas visitors and Korea's own holiday season land on top of each other, so the earlier you book, the better your pick.

☕ Use the Rest Areas 

Plan a stop roughly every two hours of driving — it's a Korean road-safety norm, and the rest areas are a highlight rather than a chore. 

Korea's expressway service areas are famous for their food courts, clean restrooms, and proper places to stretch out, with smaller "drowsy rest areas" dotted between the big ones. On a hot day, they double as an air-conditioned reset, and on a long drive, they're how you stay sharp.

🔌 EV Charging on Coastal Drives 

Charging is solid along the East Coast's Route 7 and dense across Jeju, so an EV is a comfortable choice on either. LOTTE rent-a-car also runs a range of seasonal promotions for international customers, sometimes including EV-charging perks, so it's worth checking what's currently on offer for your travel dates.

Two cautions: extreme heat trims battery range, so leave yourself a buffer between charges, and stick to the traffic rules — violating them during your rental can reduce or even void your insurance coverage.

Why LOTTE rent-a-car for Summer Travel? 

LOTTE rent-a-car puts a branch at nearly every gateway to these four routes and backs the drive with foreigner-only insurance, round-the-clock English help, and direct-booking benefits, which is what makes a summer road trip here pretty low-stress.

• Korea's No. 1 rental brand, with hubs at every route gateway: Seoul Station, Gangneung Station, Jeju Airport, Gimhae Airport, Busan Station, and Haeundae.

• Zero Excess CDW, exclusive to international customers — a ₩0 deductible, so an accident doesn't come with an out-of-pocket bill.

• 24/7 accident response on +82-2-1588-1230, with staff dispatched to the scene and a replacement vehicle to keep your trip moving.

• Free English GPS standard in every car — and where a Jeju vehicle doesn't have it, a free phone mount so you can run Naver or Kakao.

• Direct-booking benefits — book on the official site to unlock the pay-later option, and keep an eye out for the seasonal promotions LOTTE rent-a-car runs for international customers from time to time.

If it's your first time renting here, our full guide to renting a car in Korea walks through the documents, the insurance, and the at-the-counter details.

Before You Go

A Korean summer spans beaches, islands, mountains, and cities, and a single car connects all of it — the freedom to bend your plans around the monsoon and the heat is the whole point of driving here. Whichever route fits your trip, the formula's the same: time it around the weather, book the car early, and let the coast roads and highlands do the rest.

Book direct on the official site for for its special offers, and go find the Korea that's past the city limits.

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