"If only I had known this in advance, the trip would have been so much easier..."
Summer is Jeju at its most beautiful. Wherever you go, you’ll encounter picture-perfect scenery, from emerald seas and lush green oreum to refreshing forests.
However, summer is also Jeju’s busiest peak season. There are more variables than you might expect, including extreme heat, high humidity, sudden rain, and rising rental car and accommodation prices.
When you listen to people who have actually made the trip, their regrets tend to be quite similar. If you’re planning a trip to Jeju this summer, keep these 9 things in mind.

1. 🗺️ Trying to fit too much into one day
It’s easy to get ambitious on your first trip to Jeju. You want to visit Hyeopjae, see Seongsan Ilchulbong, climb an oreum, and stop by a famous café. In summer, however, getting around becomes a journey in itself. Heavy traffic at attractions and waits for parking often put you far behind schedule. As a result, your trip can easily turn into a rush to snap a few photos before moving on to the next place.
💡 Rather than trying to cover eastern, western, and southern Jeju in a single day, you’ll be much more satisfied if you take your time exploring one area.
2. 🥵 Scheduling outdoor activities during the hottest hours
Afternoons are the toughest time of day in summer on Jeju. Between 1 p.m. and 4 p.m., heat radiating from roads and parking lots adds to the blazing sun, making it feel significantly hotter. If you climb an oreum or take a coastal walk during these hours, you may tire much faster than expected.

⛰️ Frequent Jeju visitors often plan around the time of day: the sea or an oreum in the morning, cafés or exhibitions in the afternoon, and a beach walk in the evening. Even the same places are far more pleasant when visited at the right time.
3. 🏨 Booking accommodation based only on photos
You’ll often find reviews from travelers who loved the photos but were disappointed upon arrival. In summer, humidity and odors have an especially big impact on your stay. Accommodation near the coast or in older buildings may feel damp or smell musty because of the season, and a weak air conditioner can make it difficult to rest comfortably even at night.
💡 Before booking, check recent reviews and look specifically for comments about “humidity,” “odors,” and “air conditioning.”
4. 🚗 Assuming a rental car is the only answer
Most people start by booking a rental car when planning a Jeju trip. It is certainly the most convenient way to get around, but it isn’t the best answer for every trip. If you’re mainly exploring downtown Jeju City or Seogwipo, or traveling with your parents, using a combination of buses and taxis may be more comfortable.
A one-day taxi tour is another good option. You can focus on sightseeing without worrying about driving or parking, and drivers often recommend local restaurants and hidden gems. If you book an electric vehicle, check charging-station locations and return policies in advance.
5. 🌳 Thinking only about the sea and missing the forests
The sea is usually the first thing that comes to mind when you think of summer in Jeju. In midsummer, however, the forests can be even more appealing. Gotjawal forest trails and mid-mountain areas have plenty of shade and feel cooler than the city. Taking a break at a quiet café while admiring the greenery can also become a special memory.

🌲 You’ll discover another side of Jeju’s summer charm.
6. 🌧️ Not preparing at all for rainy days
In Jeju, rain can arrive suddenly even when the sky was clear. Searching for a new plan every time this happens can easily waste precious time.

☔ Before you leave, save a few weather-proof options such as exhibition halls, art galleries, museums, and indoor activity venues. You’ll be able to travel much more leisurely. Enjoying Jeju’s unique rainy-day atmosphere can also be a memorable experience.
7. ⛰️ Underestimating oreum hikes
Even oreum that look gentle in photos often have steeper slopes than expected. Many also offer little to no shade, making summer hikes far more physically demanding than you might think.
💡 Check the difficulty and estimated hiking time before visiting, and be sure to bring water, a hat, and sunscreen. If possible, we recommend hiking in the morning.
8. 👒 Taking your packing list too lightly
You may think T-shirts and shorts are all you need, but that isn’t the case. A wide-brimmed hat protects you from the intense sun, while a light long-sleeved layer is useful for both UV protection and cool evening sea breezes. A portable fan, power bank, and water bottle are also worthwhile additions for a summer trip to Jeju. A little preparation can make a big difference to how you feel throughout your trip.
9. 🧳 Staying busy without resting until the very end
Many people try to squeeze in one more attraction right up until the final day. Surprisingly, though, the moments they remember most are often drinking coffee on their accommodation terrace, taking an evening walk while looking out over the sea, or leisurely enjoying takeout from a popular restaurant.
💡 During summer in Jeju, deliberately leave at least one day with some breathing room. A slow-paced trip will stay with you much longer than a packed one.
🏝️ Summer tips only locals know
🚿 Check shower and parking lot hours in advance — Most beach showers operate only during official beach opening hours and cannot be used after closing. If you plan to wash up after swimming, check the closing time beforehand. Parking lots also often fill up before noon during peak season, so arrive with plenty of time.
🌡️ Change your route on days with extreme heat advisories — Instead of outdoor activities, build your itinerary around well-air-conditioned places such as art galleries, museums, and indoor water parks. You can enjoy a full day without exhausting yourself.
🧭 Consider relatively less crowded areas — Famous destinations such as Hyeopjae and Jungmun tend to remain crowded throughout peak season. Even within western or southern Jeju, planning your route around lesser-known beaches and villages gives you much more room to relax.
🌇 Check the sunset time in advance — The sun sets late in summer, so it’s easy to miss the best sunset moment if you don’t know the time. Look up that day’s sunset time before setting out, and you can leisurely finish your itinerary at a scenic sunset spot.
It’s not about how many places you visited, but how relaxed you felt
On a summer trip to Jeju, how leisurely you enjoy yourself matters more than how many places you visit. Don’t be overly ambitious with your route, avoid traveling during the hottest hours, and prepare a little in advance for the weather, accommodation, and transportation. Even during peak season, Jeju can be much more comfortable. Rather than trying to see one more place, plan a trip that lets you slowly appreciate Jeju’s distinctive scenery and pace. By the end, you may find yourself wishing you could stay just a little longer.
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1나는 진짜 신발 말리는 기계 들고 가는거 추천함.. 여행 일정이 장마랑 살짝 겹쳤는데 호텔에서 신발 열심히 말렸던 기억 있음