Hidden Yeonnam-dong café for melon ade and oven-warm egg tart: Sideway

In short

Sideway is a café hidden down a gray side path off an alley in Yeonnam-dong, Mapo, Seoul, serving coffee, desserts and whiskey. The writer ordered a Korean melon (chamoe) ade for ₩7,000 and an egg tart for ₩4,000 that Sideway rewarms in the oven, and liked the egg tart enough to take a second one home. Sideway is a good Yeonnam-dong café for a quiet solo break with a book.

Sideway, a hidden café in a Yeonnam-dong alley

Good to know

Getting there
Hongik Univ. Station Exit 3 · 13-min walk (store listing, Oct 12, 2026)
Address
1st floor, 30 Donggyo-ro 51an-gil, Mapo-gu, Seoul
Getting there
About 895m from Hongik Univ. Station Exit 3; facing Kong Café, take the alley on the right and follow the gray side path
Opening hours
11:00–21:00 (last order 20:30)
Parking
Not available; use a nearby public parking lot
Korean melon ade
₩7,000
Egg tart
₩4,000
Basque cheesecake
₩8,500
Americano
₩5,300
Side Latte (signature)
₩6,800
Seating
Indoor seats and outdoor terrace seats
Price reference
₩7,000 ≈ $5.3 · ₩4,000 ≈ $3 · ₩8,500 ≈ $6.4 (2026-10-27)

as written by the visitor on Jun 10, 2026

What kind of café is Sideway in Yeonnam-dong?

First photo from a visit to Sideway café in Yeonnam-dong
Sideway, a hidden café in a Yeonnam-dong alley
Sideway, a coffee, dessert and whiskey café

Sideway is a coffee, dessert and whiskey café tucked into a corner of Yeonnam-dong. If you're hunting for your own hidden café in Yeonnam-dong near Hongdae, congratulations, you've finally found it. So I'm recommending it! Sideway is the kind of warm, cozy café that only people in the know visit.

Getting to Sideway, opening hours and parking

Sideway's address is 30 Donggyo-ro 51an-gil, Mapo-gu, Seoul, on the 1st floor. It's 895m on foot from Exit 3 of Hongik Univ. Station (Line 2, AREX and the Gyeongui-Jungang Line). Face Kong Café and go into the alley on the right, and you'll see a gray side path right ahead. Walk down it and Sideway is on the 1st floor.

  • Hours: 11:00 - 21:00
  • Last order: 20:30
  • Parking: Not possible. Please use a nearby public parking lot!

First impressions of Sideway and what I ordered

The moment I arrived at Sideway, I just gasped. Wow... wow! There was a hidden café like this? It's totally my style!!!!!! Sideway also sells hand-drip coffee, non-coffee drinks and whiskey, and there's even wine, so you can enjoy that too. How do I put it, it felt like a trendy, hip space with real mood.

Inside Sideway café in Yeonnam-dong
Sideway, which serves hand-drip coffee and whiskey
The moody space at Sideway café
Melon ade and egg tart ordered at Sideway
Table with Sideway's melon ade and egg tart
Photo related to taking Sideway's egg tart to go

That day I ordered a melon ade (chamoe ade, made with Korean melon) for ₩7,000 and an egg tart for ₩4,000. The egg tart was... so good that I ended up ordering one more to take out. They put it in a cute little box for takeout.

What's the atmosphere inside Sideway like?

Inside, Sideway has a gentle breeze drifting through, and the mood is cool, cozy and stylish all at once. Just look at the interior. It's seriously crazy, I mean it. It's simply a café that puts you in a good mood. You can bring a book and have a relaxing time here.

Cozy interior of Sideway with a breeze coming in
Atmosphere inside Sideway café
Indoor seats at Sideway for reading and relaxing
Stylish interior of Sideway

Sideway menu and prices

Let's take a look at what Sideway sells. I only listed the coffee, tea and desserts.

Coffee

  • Americano ₩5,300
  • Espresso ₩5,300
  • Café latte ₩5,800
  • Vanilla bean latte ₩6,300
  • Side Latte ₩6,800
  • Cappuccino ₩5,800

Tea

  • Goyo ₩5,500 (a calming, relaxing tea)
  • Sandeul ₩5,500 (a refreshing, circulation tea)
  • Goyo milk tea ₩6,500 (homemade milk tea brewed with Goyo)
  • Sandeul pear iced tea ₩6,000 (pear iced tea topped with brewed Sandeul)

Desserts

  • Basque cheesecake ₩8,500
  • Egg tart ₩4,000
Photo related to Sideway café's menu
Photo related to Sideway's coffee, tea and dessert menu
Sideway's interior with a hidden-nook feel

With its interior that feels like things are hidden all around, I could just look around Sideway and time flew by. There were all kinds of guests: people reading, someone who looked like they were quietly meditating, people chatting. A place to rest comfortably felt really precious.

How does Sideway's melon ade taste?

Sideway's melon ade is ₩7,000, and it's refreshing without being too sweet. The melon ade finally arrived! It wasn't too sweet, which was just right, and I could enjoy a tangy freshness at the same time, so it was delicious. It had a deep yet bright melon flavor, and it was so good! Please try it.

Why did I even take Sideway's egg tart to go?

Sideway egg tart served reheated from the oven
Sideway egg tart, ₩4,000

Sideway's egg tart is ₩4,000, and they reheat it in the oven before serving, so it was really delicious. For one thing, the tart has no eggy smell, so it was easy to eat, and above all it was clean and soft in flavor, which I personally loved.

Clean, soft Sideway egg tart
Sideway egg tart with a drink

Next time I'd like to try Sideway's signature Side Latte too. It's a precious space with both atmosphere and flavor, so try recharging on your own at Sideway!

Sideway café space in Yeonnam-dong
Seating area at Sideway café
Photo of Sideway's outdoor terrace
Sideway's outdoor space, nice when the weather is cool

Sideway's outdoor terrace: when is it nice to sit there?

Sideway has outdoor terrace seats too. When it's very hot the terrace might be tough, but if you go when it's cool, I think it would be a perfect little retreat!

Where it is

Sideway사이드웨이

30 Donggyo-ro 51an-gil, Mapo-gu, Seoul, South Korea서울특별시 마포구 동교로51안길 30 1층

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Local places · Cafés