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If Seongsan Ilchulbong is the landmark of eastern Jeju, Udo is the island that makes you want to slow down for the rest of the day.
The ferry ride is short.
But once you arrive, the atmosphere changes.
The roads become smaller.
The sea seems closer.
White beaches, black volcanic cliffs and green fields appear within a few kilometers of each other.
And because Udo is compact, you can experience several completely different landscapes without spending hours driving across Jeju.
But there is one important thing to understand in 2026.
Do not assume you can simply take your Jeju rental car onto Udo.
Ferry → Beach → Udobong → Black Sand Coast → Slow Island Day
🏝️ What Is Udo Island?
Udo is Jeju's largest offshore island and lies just east of the main island.
Its name is associated with the island's shape, which is often compared to a cow lying down.
Udo is approximately 3.8 km long with a coastline of roughly 17 km.
That makes it compact enough for a day trip but large enough that trying to walk everywhere can take much longer than first-time visitors expect.
The island combines beaches, volcanic landscapes, farms, fishing villages and panoramic viewpoints.
📍 Udo Island
Udo-myeon
Jeju-si
Jeju-do, South Korea
Udo-myeon
Jeju-si
Jeju-do, South Korea
🗺️ Where Do You Catch the Ferry?
Most travelers reach Udo from Seongsan Port in eastern Jeju. Ferries are also available from Jongdal Port.
Use the map below to reach Seongsan Port Passenger Terminal.
🟩 Udo at a Glance
⛴️ Ferry: From Seongsan or Jongdal Port
⏱️ Ferry crossing: About 10–15 minutes
📏 Island length: About 3.8 km
🔄 Coastline: About 17 km
🚶 Walking around: Roughly 3–4 hours without long stops
⏱️ Recommended first visit: At least 3–4 hours on Udo
🏖️ Highlights: Seobinbaeksa, Hagosudong, Udobong, Geommeolle
🚗 Rental car: Restrictions apply
🌊 Important: Ferry schedules can change because of weather and sea conditions
⛴️ The Ferry Ride Is Only About 10–15 Minutes
The ferry itself is easy.
The part that requires planning is everything around it.
You need time to park or reach the terminal.
You need to buy your ticket.
You need to board.
And most importantly, you need to know the last ferry returning from Udo.
Do not plan your return based only on a timetable you found several months ago.
Ferry schedules can change by season, weather, sea conditions and operating circumstances.
⚠️ Most Important Ferry Rule
When you arrive on Udo, check the final return ferry time before you begin sightseeing. Do not wait until late afternoon to think about how you are getting back to Jeju.
💰 How Much Is the Ferry?
Ferry and park charges can be shown differently depending on the source and route.
The current Korea Tourism Organization information lists an adult round-trip combined fare of approximately KRW 10,500.
Visit Jeju separately lists the Udo Marine Provincial Park admission charge at KRW 1,000 for adults, with ferry fare charged separately.
💳 Before Paying
Treat published fares as a planning reference. Check the current price at the terminal or official ferry website because the exact amount can differ by route, age and vehicle conditions.
🚫 2026 Rental Car Rules Have Changed Again
This is one of the most important updates for foreign visitors.
Udo's restrictions on outside vehicles were extended again from August 1, 2026 through July 31, 2029.
That means you should not automatically assume that a rental car from Jeju can be taken onto the island.
However, the rule includes specific exceptions.
⚠️ Current Vehicle Restriction
Outside rental vehicles are generally restricted.
Some qualifying low-emission electric or hydrogen rental vehicles may be permitted.
Vehicles used by travelers with mobility needs can qualify under applicable conditions.
Rental vehicles used by guests staying overnight on Udo may also qualify under specific conditions.
Always confirm your exact vehicle eligibility before buying a vehicle ferry ticket.
This is especially important because rules for motorcycles, motorized bicycles and personal mobility devices also depend on vehicle type, speed, power source and insurance status.
🚲 So How Should You Get Around Udo?
For many first-time visitors, leaving the car on Jeju is actually easier.
Once on Udo, the practical options include walking, bicycles, permitted electric mobility vehicles and local transport.
Your best choice depends on how much time you have and how much walking you want to do.
🚶 Walking:
Best for slow travel, but the entire island takes time.
🚲 Bicycle:
A good balance between speed and scenery.
⚡ Permitted electric mobility:
Convenient, but check licensing, insurance and vehicle rules before renting.
🚌 Local transport:
Useful if you want to focus on major attractions rather than completing the whole coast.
🤍 Stop 1 — Seobinbaeksa
This is one of Udo's most visually distinctive beaches.
It is often called a coral beach in casual conversation.
But the white material here is not ordinary coral sand.
It is associated with rhodoliths formed by hardened red algae.
The contrast is striking.
Bright white shore.
Emerald water close to land.
Deeper blue farther out.
It can look completely different from Jeju's dark volcanic coastlines.
📷 Photo Tip
Photograph the change in water color rather than only the beach. The transition from pale turquoise to deep blue is one of Seobinbaeksa's strongest visual features.
🌊 Stop 2 — Hagosudong Beach
Hagosudong gives you a more familiar beach experience.
The shore is wider.
The water can look exceptionally clear in good weather.
In summer, this is one of the places where you may want to slow your schedule down instead of immediately moving to the next attraction.
If you are visiting with family or simply want more beach time, Hagosudong can easily take longer than expected.
☀️ Summer Tip
A beach stop that looks like 20 minutes on your itinerary can turn into an hour very quickly. Leave extra time if Hagosudong is one of your priorities.
⛰️ Stop 3 — Udobong Peak
If you want to understand the shape of Udo, climb higher.
Udobong rises about 100 meters above the island and gives you a wider view across Udo and the surrounding sea.
From the higher ground, the island's farmland, villages and coast become easier to understand as one landscape.
On a clear day, you can also look back toward the eastern side of Jeju.
Fields + Village + Ocean + Eastern Jeju
⚫ Stop 4 — Geommeolle Beach
Then Udo changes character again.
Geommeolle literally refers to black sand in the Jeju dialect.
The beach sits beneath Udobong and is much smaller than the wide sandy beaches many travelers imagine.
Its appeal comes from the darker volcanic scenery.
Black coast.
Cliffs.
Rock formations.
And a very different atmosphere from Seobinbaeksa.
📷 Why This Stop Matters
Seobinbaeksa and Geommeolle are almost opposites. Seeing both during the same day makes Udo's geological variety much easier to appreciate.
🥜 Yes, Udo Peanuts Are Everywhere
You will quickly notice peanut cafés, peanut ice cream and peanut-flavored products around the island.
They have become closely associated with the Udo travel experience.
You do not need to plan your entire route around a particular café.
Instead, use a café stop as your rest period between coastal sightseeing.
🥜 A Simple Udo Break
Beach → short ride → peanut ice cream or coffee → continue to the next section.
⏱️ How Much Time Do You Really Need?
Technically, Udo is small.
Practically, it is very easy to spend most of a day here.
The official tourism information estimates that walking around the island without long stops takes roughly three to four hours.
But that is not how most tourists experience Udo.
You stop at beaches.
You take photographs.
You eat.
You climb Udobong.
You wait for transport.
⏱️ 2 hours:
Too rushed for most first-time visitors.
⏱️ 3–4 hours:
Enough for a few major stops.
⏱️ 5–6 hours:
Much better if you want beaches, Udobong and a relaxed meal or café.
☀️ Summer 2026: Start Earlier Than You Think
August is a popular time to visit Udo.
It is also hot, humid and busy.
If possible, take an earlier ferry.
You will have more flexibility before the hottest part of the day and more margin before the last return ferry.
⚠️ Wind Can Cancel Your Plan
Udo is an island trip. Strong wind and poor sea conditions can delay or cancel ferries. Check the operating status on the morning of your visit.
🎒 What Should You Bring?
✔ ID for ferry boarding
✔ Water
✔ Sunscreen
✔ Hat
✔ Comfortable shoes
✔ Charged phone
✔ Portable battery
✔ Light wind or rain layer
✔ Enough time before the final ferry
🟨 Who Should Visit Udo?
🌊 First-time Jeju travelers
It gives you a completely different island atmosphere from mainland Jeju.
🚲 Slow travelers
Udo works especially well when you are happy to move at bicycle or walking speed.
📷 Photographers
White shore, turquoise water, green hills and black volcanic cliffs all appear within one compact island.
🏖️ Beach travelers
You can compare several very different coastal environments in one day.
👨👩👧 Families
A short ferry ride makes the island accessible, but allow extra time and check mobility options before arriving.
❓ BEST 3 QUESTIONS
1. Can I take my Jeju rental car to Udo in 2026?
Not automatically. Outside vehicle restrictions are currently in effect through July 31, 2029. Some qualifying low-emission vehicles and specific accessibility or accommodation cases may be permitted, so check your exact vehicle before traveling.
2. How long is the ferry to Udo?
The crossing from Seongsan or Jongdal generally takes approximately 10–15 minutes, depending on the route and operating conditions.
3. How long should I spend on Udo?
For most first-time visitors, at least three to four hours on the island is more realistic than a quick stop. Five to six hours gives you a much more relaxed experience.
⭐ A Local's Final Advice
Do not arrive on Udo trying to collect every attraction.
Take the ferry early.
Check the last return boat.
Choose a few places that are genuinely different from each other.
See the white shore at Seobinbaeksa.
Go higher at Udobong.
See the black volcanic coast at Geommeolle.
Stop for something made with Udo peanuts.
And leave enough empty time to simply look at the sea.
Udo is small enough to cross quickly, but it is much better when you don't.
Official Information
Udo Ferry — Current Operating Information
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