Seonyudo Park: Seoul’s Island Escape in the Middle of the Han River

If you think Seoul is all high-rises and neon lights, think again. Nestled right in the middle of the Han River is Seonyudo Park (선유도공원), a serene, eco-friendly island park that blends industrial history with lush greenery and creative design. It’s one of those rare places where nature, architecture, and sustainability meet, and it’s just a short walk from Hapjeong or Dangsan.

From Water Purification Plant to Urban Oasis

Once upon a time, Seonyudo wasn’t a park at all, it was an industrial water treatment facility. But in the early 2000s, instead of tearing it down, the city transformed the island into an innovative urban green space. Today, remnants of the old plant are carefully preserved and integrated into gardens, pathways, and viewing platforms.

The result? A park unlike any other in Seoul.

You’ll walk past rusted tanks turned into art, concrete basins now filled with aquatic plants, and vine-covered steel frames that once held machinery. It’s a brilliant reuse of space that invites you to reflect on the past while enjoying the present.

What to See & Do at Seonyudo Park

Here’s what makes the park special:

1. The Greenhouse & Water Garden

A highlight for many visitors, this section of the park showcases water purification in action, with lotus ponds, stepping stones, and tropical plants creating a peaceful, almost Zen-like vibe.

2. The Garden of Time

This area features preserved ruins from the industrial plant, symbolizing the passage of time and Seoul’s transformation from industry to ecology.

3. Skywalks and Bridges

Elevated walkways and small bridges offer views over the river and inside the former plant structures, perfect for photos and peaceful reflection.

4. Han River Views

Because the park is an island, you’re surrounded by water. Whether it’s sunrise, sunset, or just a cloudy afternoon, the views are unbeatable. Sit by the railing and watch bikers and joggers race past on the riverbanks.

Best Ways to Enjoy Your Visit

• 🧺 Bring a picnic and sit on one of the open lawns.

• 📷 Photography lovers will enjoy the industrial-meets-nature vibe.

• 🧘 Come solo for a quiet walk or journaling session.

• 👨‍👩‍👧‍👦 Family-friendly with flat paths, small ponds, and fun spaces for kids to explore.

• 🌇 Perfect at sunset: the changing light brings out the texture in the old structures.

How to Get There

• 🚇 Subway: Take Line 2 or 6 to Hapjeong Station, then walk across Seonyudo Bridge (about 10-15 minutes).

• 🕒 Open Hours: Typically 6 AM-midnight

• 💵 Admission: Free!

There are restrooms, vending machines, and shaded spots throughout the park, no shops inside, so grab snacks or coffee before you go.

Seonyudo Park is proof that beauty can be born from the unexpected. Once a symbol of industrial utility, this small island is now a beloved green space where city life slows down. It’s a must-visit for those looking to experience Seoul beyond the tourist trail.

Whether you're a nature lover, a design nerd, or just someone who needs a peaceful walk, Seonyudo Park is Seoul’s hidden gem waiting to be discovered.