Gangnam Days 1–3 were walking-and-eating itineraries. Day 4 is bigger in scale: KSPO Dome, the indoor arena fans nickname the “gymnastics-arena concert,” plus Seoul’s tallest observation deck at Lotte World Tower, and a walk around Seokchon Lake.

Why this route

KSPO Dome (formerly the Olympic Park Gymnastics Arena) is the indoor venue where BTS, EXO, Seventeen, IU, and other top Korean acts have actually performed. Fan communities nickname concerts here “체조콘” (the gymnastics-arena concert) and consider it one of the milestone stages an idol can play. It holds up to 15,000 people and has a reputation for good sightlines from nearly any seat, so even without a concert to attend, the venue and surrounding park are worth the visit for the atmosphere alone. Pairing it with Lotte World Tower’s Seoul Sky deck adds Seoul’s skyline to a day that’s otherwise about concert-venue tourism.

Full itinerary

  1. Olympic Park Station — KSPO Dome exterior & Olympic Park walk
  2. Mongchontoseong Station — transfer
  3. Jamsil — Lotte World Tower’s Seoul Sky observation deck
  4. Walk around Seokchon Lake
  5. Dinner in Jamsil

Getting there

KSPO Dome is a 5-minute walk from Olympic Park Station (Line 9 / Seoul-Hyeongsan Line). Once you’ve explored the park, take the subway toward Jamsil — Lotte World Tower is directly connected to Jamsil Station (Line 2 / Line 8). Jamsil Station and Seokchon Lake are also within walking distance of each other, so this is a simple two-area day: Olympic Park and Jamsil.

Admission fees & hours

  • KSPO Dome: On days without a concert, you’re mainly seeing the exterior and Olympic Park itself. If you want to see an actual concert, you’ll need to book through that artist’s own ticketing site — check KSPO Dome’s schedule at ksponco.or.kr. The park itself is free to enter.
  • Seoul Sky (Lotte World Tower): Adults (13+) get a standard ticket, with a cheaper children’s rate for ages 3–12. There’s also a morning ticket (valid only before noon) and a weekday-only ticket, both cheaper than the standard rate. Children under 36 months get in free with proof of age (one per accompanying adult), and a national merit/disability card gets you 30% off.
  • Seokchon Lake: A free public park, especially crowded during cherry blossom season. A full loop takes about 40 minutes at a relaxed pace.

Food, cafes & snacks

Olympic Park has plenty of benches and lawns for a convenience-store picnic, or you can grab coffee at a cafe near the park entrance before moving on. Lunch options are easy to find in Lotte World Mall’s underground food court in Jamsil, and dinner options around Jamsil Station range from Korean barbecue to street food. Seokchon Lake is ringed with cafes and bakeries, so a dessert stop mid-walk is an easy add. For a quick bite, the mall’s dessert counters are solid, and seasonal snack stands near the lake are worth grabbing on the way past.

Tips

  • Saving money: Seoul Sky’s discounts vary a lot by payment method. PAYCO points get you 1% instant off, and Toss Pay offers a 3,000-won instant discount for the first buyers each day at 10am — these promotions rotate, so check each app’s deals page the day before. Choosing the morning or weekday ticket also lowers the base price.
  • Skipping the wait: Seoul Sky gets busy on weekend afternoons, especially around sunset. A weekday morning ticket, or booking a specific timed entry online in advance, cuts down the on-site wait considerably.
  • Concert tips: KSPO Dome concert tickets for major acts tend to sell out at the moment sales open. Have your account and payment info saved ahead of time and refresh right at the sale window — and don’t stress too much about seat tier, since reviews consistently say the sightlines are good throughout.
  • Route tip: Olympic Park is bigger than it looks — sticking to the area near KSPO Dome rather than trying to cover the whole park keeps this a manageable one-day route. Covering the entire park easily eats up half a day on its own.

This is the one Gangnam itinerary in this series built around an indoor arena and a skyscraper observation deck rather than street-level walking. If your visit lines up with an actual concert date at KSPO Dome, it’s worth checking your favorite artist’s schedule before you finalize plans. Next up: a hands-on day learning K-pop choreography at 1MILLION Dance Studio.

Sources: KSPO Dome venue info, Seoul Sky official site