Udo Island, also known as “Cow Island” because of its shape, is a tiny treasure just off the east coast of Jeju Island in South Korea. With its peaceful atmosphere, coral beaches, and scenic landscapes, Udo feels like a step back in time. We spent a magical day exploring this beautiful island and were completely enchanted. If you’re visiting Jeju, a day trip to Udo Island should be at the top of your list!

The best way to reach Udo Island is by ferry from Seongsan Port on Jeju’s east coast. The ferry ride is short — just 15 minutes — but you’ll want to check the Udo Island ferry schedule in advance. During high season, especially in summer, it can get busy, so it’s smart to get there early. Don’t forget your passport or ID – you’ll need it to buy your ferry ticket.

Once you arrive, you’ll find yourself in a peaceful landscape that’s perfect for exploring by bike, buggy, or even on foot. No stress, no rush – Udo invites you to slow down and enjoy.

🛌 Planning Your Day Trip? Stay Near Seongsan Port

Because the early morning ferries to Udo Island can get incredibly busy during high season, we highly recommend basing yourself on Jeju’s east coast. Staying right near the harbor skips the long cross-island commute and lets you beat the tour buses.

Use our interactive map below to find the best hotels, ocean-view guesthouses, and apartments closest to the Seongsan Ferry Terminal. Adjust your travel dates to scan live pricing and availability:

Exploring Udo Island is half the fun. As soon as we stepped off the ferry, we were greeted by rental shops offering electric bikes, scooters, and the ever-popular buggies. Since we didn’t have a Korean driver’s license, we weren’t allowed to rent a buggy or scooter — so we opted for electric bikes.

And honestly, we’re so glad we did! Cruising around the island with the salty sea breeze in our hair and the sun on our backs was pure joy. The roads are easy to navigate, and there’s hardly any traffic as cars aren’t allowed on the island.

Udo Island has both white coral beaches and black lava beaches, and each one is uniquely stunning. Here are the ones we loved the most:

This is Udo’s most famous beach, and for good reason. The sand here is made from crushed coral, giving it a beautiful white-pink shimmer. Add crystal-clear turquoise water and a view of Seongsan Ilchulbong in the distance, and you’ve got a beach that could rival any in Southeast Asia. It’s picture-perfect and a great spot for a swim or to just lay back and soak it all in.

This beach is the opposite of Seobin Baeksa — dark, dramatic, and full of character. The black volcanic sand gives it a unique look, and because it’s a little more hidden, you might even have it all to yourself. It’s not really a swimming beach, but it’s perfect for a moody walk and photos.

This beach is small and quiet, and that’s exactly why we loved it. Soft sand, calm water, and the occasional local fisherman going about his day. A great spot to relax, listen to the waves, and just… be.

Riding around Udo on our electric bikes was already a joy, but two stops really stood out and added an unexpected twist to our day.

Imagine stumbling across a little splash of color and curves that feel straight out of Vienna – on a tiny Korean island. That’s exactly what Hundertwasser Park felt like! Inspired by the famous Austrian artist Friedensreich Hundertwasser, the park has quirky architecture, mosaic art, and a slightly surreal vibe. It’s small but packed with charm, and a great place to hop off the bike, take a breather, and snap a few fun photos. Definitely not something we expected to see here!

After a bit more pedaling (and a few snack stops), we reached Ji Doo Cheong Sa, also known as Udobong Peak. It’s the highest point on Udo Island — and the short climb is absolutely worth it. At the top, you’re treated to sweeping 360° views of the ocean, the island, and even Jeju in the distance. It’s peaceful, breezy, and one of those places where time just slows down. We sat down, looked around, and felt that kind of joy that only comes from finding yourself exactly where you’re meant to be.

If you’re hungry for something more filling, you’ll find seafood restaurants offering local specialties like grilled abalone, sea urchin bibimbap, and seaweed soup.

We also spotted several cozy cafés with seaside views, perfect for a coffee break or a small snack. Just keep your eyes open as you cruise around the island — Udo is full of little surprises.

One of the questions we had before visiting was: How long do you actually need on Udo Island? After spending a full day exploring, we can confidently say — a day is just right.

The island may be small, but it’s packed with interesting spots, scenic views, and hidden gems that you won’t want to rush through. We started early and were back on Jeju in the late afternoon, feeling tired, happy, and full of new impressions.

The key is to pace yourself. You don’t need to tick off every single landmark — just pick the spots that speak to you. For us, that meant cruising the coastline on e-bikes, stopping for ice cream, soaking in beach views, and taking in the peaceful atmosphere.

We decided not to stay until sunset, partly because we didn’t want to squeeze into a full ferry at the end of the day. And honestly? It was perfect that way. Sometimes it’s better to leave a place while you’re still smiling — and Udo definitely left us smiling.

Here’s what we learned from our day on Udo:

• Arrive early to avoid long lines at the ferry terminal.
• Bring your ID — it’s required to get on the ferry.
• Wear sunscreen — the sun reflects off the coral sand, and it’s easy to burn.
• Rent a bike to make exploring more fun and flexible.
• Try the peanut ice cream. Then try it again.

If you’re already exploring Jeju, don’t skip Udo. In fact, we’d even say it was one of the highlights of our time on the island. There’s just something about it — maybe it’s the calm, maybe it’s the peanut ice cream, or maybe it’s just the fact that exploring on a bike brought us big smiles in our faces.

Either way, Udo Island stole our hearts. And we’re pretty sure it will steal yours too.

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