Let’s take a look at a “Gangnam indoor one-day travel course” route that never fails—even on rainy days, in midsummer, or in the dead of winter.

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1-Minute Summary: Why This Course Is “Always” a Great Choice

COEX is a 장소 where, inside one building, you can take care of “things to see (aquarium) + photo spots (Starfield Library) + great restaurants/cafes/shopping” all at once—making it an especially safe choice for first-time travelers and foreign residents.
Plus, Starfield Library is free, and the aquarium offers online booking discounts, so you can control your budget too. (I’ve organized the latest operating hours/prices below based on the most current info.)

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Before You Go: Check This (Hours · Prices · Parking · Transportation)

Operating Hours & Costs at a Glance

• SEA LIFE COEX Aquarium: Daily 10:00–20:00, last entry 19:00, open year-round (as 안내). (SEA LIFE)
• Starfield Library: 10:30–22:00, free for everyone to use. (Starfield)

Aquarium Tickets (Discount 기준, Example from the Official Ticket Page as of Jan 2026)

• Adults (13+): ₩27,000 (online) / ₩35,000 (regular)
• Children (36 months–12): ₩24,000 (online) / ₩31,000 (regular)
• Package options are also available (prices vary), such as couple/family/VR bundles. (SEA LIFE COEX Aquarium)

Time Needed (Very Important for Planning!)

• Aquarium visit takes about 1 hour 30 minutes (as 안내). (SEA LIFE COEX Aquarium)
• For Starfield Library, even just “look around + photos” takes 30–60 minutes, and if you “read/work,” 2+ hours can fly by (depends on the person).

Parking (If You’re Driving, Don’t Skip This!)

• COEX Mall parking discount: 4 hours for 4,800 KRW (if not validated: 6,000 KRW/hour, plus 1,500 KRW per 15 minutes over) (as 안내). (SEA LIFE)
• How to get the discount: Enter the last 4 digits of your license plate at the parking discount machine inside the aquarium. (SEA LIFE)

How to Get There by Subway (Easiest Even for Foreigners)

Based on COEX’s official “Directions”:

• Line 2 Samseong Station Exit 5 or 6 → enter via the direct connecting passage
• Line 9 Bongeunsa Station Exit 7 → enter via the direct connecting passage
• Line 7 Cheongdam Station Exit 2 → 10–15 minutes on foot (Coex)

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Did the COEX Aquarium Name Change?

Yes. The official ticket page states that “COEX Aquarium is reborn as ‘SEA LIFE COEX Aquarium’ (same location).” Even if you search using the old keyword, it may appear as “SEA LIFE COEX.” (SEA LIFE COEX Aquarium)

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Recommended 1-Day Itinerary (Most Efficient Route)

Key point: The order Starfield (opens 10:30) → lunch → aquarium (afternoon visit + program timing) gives the best balance of “photos/rest/experience.”

Course A: A Full “Photos + Experience + Night View” Course (Recommended)

Time	Plan	Tip
10:30	Arrive at Starfield Library	Right after opening is relatively quiet, so photos turn out great
11:30	Walk/shopping at COEX Mall (lightly)	Get familiar with the layout + takeaway coffee 추천
12:00	Lunch (inside COEX Mall)	If you eat before the lunch peak, wait times drop a lot
13:00	Enter SEA LIFE COEX Aquarium	Plan comfortably based on the 1.5-hour visit time
15:10	(If possible) Stingray talk	Tue–Sun/holidays 15:10 (10 min), free (as 안내) (SEA LIFE)
15:40	Dessert/rest	COEX has lots of places to sit, so it’s great for taking a break
16:30	(Optional) Walk at Bongeunsa Temple	A mood change at a temple in the middle of the city (see below)
18:00	Dinner	Plenty of options around Gangnam/Samseong Station
19:30	(Optional) K-POP Square media facade	Feels even more “Seoul” at night
20:30~	Revisit Starfield (night 분위기)	The library is open until 22:00 (Starfield)

※ Aquarium programs/shows are noted as subject to change due to the company’s circumstances. I recommend checking the official page for the latest schedule before visiting. (SEA LIFE)

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Course B: With Kids/Strollers—An “Energy-Saving” Course

• 10:00 Aquarium first (right after opening) → 11:30 lunch → 12:30 Starfield (rest while reading)
• Pros: Kids burn energy at the aquarium first → naturally “cool down” at Starfield afterward.

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Best Tips by Location (For Foreign Residents/Travelers)

1) Starfield Library: A Space for “Photos and Relaxing”

• Hours: 10:30–22:00, free. (Starfield)
• It’s quite large: 2,800㎡ (about 850 pyeong) on two levels, 13m-high bookshelves, and they also note power outlets for laptop work. (Starfield)
• Photo tip: From the front on the 1st floor, frame it so “both sides of the bookshelves fit in one shot” for the prettiest photos (especially recommended on weekday mornings).

2) SEA LIFE COEX Aquarium: “Online Discounts + Program Timing” Are Key

• Hours: 10:00–20:00 (last entry 19:00). (SEA LIFE)
• The official page lists discounted online booking prices, which are often better than buying on-site. (SEA LIFE COEX Aquarium)
• Wheelchair access available (as 안내). (SEA LIFE COEX Aquarium)
• There are also programs like “shows/nature talks,” so if you time it right, satisfaction goes way up. (Example: Stingray talk 안내 at 15:10) (SEA LIFE)

3) It’s Okay Even If You’re Not Comfortable with Korean

The official SEA LIFE ticket page has a language selection (English/日本語/简体中文, etc.) menu, which makes the booking process relatively convenient for foreigners. (SEA LIFE COEX Aquarium)

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(Optional) Great Places to Add “15–60 Minutes” Near COEX

Bongeunsa Temple (A Quick Mood Change on Foot)

If a fully indoor day feels a bit stifling, this is a great place to do a quick “reset” right next to COEX.

• Korea Tourism Organization (VisitKorea) info: Hours 05:00–22:00, free admission, listed as open year-round (N/A). (VISITKOREA – Imagine Your Korea)
• However, there’s also a note that temple hours may vary depending on events/ceremonies, so checking on-site conditions is the safest. (Visit Seoul)

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Estimated Budget (Per Person, Roughly)

• Must-have (adult 기준): Aquarium online ticket ₩27,000 + meals (lunch/dinner) + café
• Value model: With the combo of “1 lunch + 1 café + free Starfield,” it’s 충분히 doable in the ₩30,000–₩60,000 range
• Couples/families: The official site has separate couple/family tickets, so it’s worth comparing. (SEA LIFE COEX Aquarium)

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Quick Guide for Foreigners (English)

• SEA LIFE COEX Aquarium: 10:00–20:00 (Last entry 19:00). (SEA LIFE)
• Starfield Library (COEX Mall): 10:30–22:00, Free admission. (Starfield)
• Subway: Line 2 Samseong Station Exit 5/6 (connected), Line 9 Bongeunsa Station Exit 7 (connected). (Coex)

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Gangnam Indoor One-Day Travel Course FAQ

Q1. What are the operating hours and last entry time for COEX Aquarium (SEA LIFE)?

It’s 안내 as daily 10:00–20:00, with last entry at 19:00. (SEA LIFE)

Q2. What are Starfield Library’s hours? Is there an admission fee?

Starfield Library operates 10:30–22:00, and it is 안내 as a space that anyone can use for free. (Starfield)

Q3. How much are COEX Aquarium tickets (adult/child)?

On the official ticket page (example as of Jan 2026), it’s listed as Adults ₩27,000 (online) / ₩35,000 (regular) and Children ₩24,000 (online) / ₩31,000 (regular). (SEA LIFE COEX Aquarium)

Q4. How much time should I plan for the aquarium visit?

Based on the official 안내, it’s listed as taking about 1 hour 30 minutes. (SEA LIFE COEX Aquarium)

Q5. Does the aquarium have shows or talks?

Yes. There is information about “underwater shows and nature talks.” For example, a stingray talk (Tue–Sun/holidays 15:10, 10 minutes, free) is listed. Schedules may change, so checking before your visit is recommended. (SEA LIFE)

Q6. How do I get the COEX parking discount?

Based on SEA LIFE information, there is a discounted rate 안내 of 4 hours for 4,800 KRW, and the method is 안내 as entering the last 4 digits of your license plate at the parking discount machine inside the aquarium. (SEA LIFE)

Q7. Which subway exit is the most convenient?

According to COEX’s official guidance, the most convenient options are Line 2 Samseong Station Exit 5/6 (connected passage) and Line 9 Bongeunsa Station Exit 7 (connected passage). (Coex)

Q8. Are “COEX Aquarium” and “SEA LIFE COEX” different places?

You can consider them the same place. The official ticket page 안내 that it’s newly rebranded as “SEA LIFE COEX Aquarium,” with the location remaining the same. (SEA LIFE COEX Aquarium)

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