You have added Seoul, Busan, and Jeju to your itinerary. Now you have three browser tabs full of attractions—and a question: which information can you use to plan the trip, and which “pass” are you actually being asked to buy?

Start with the official travel resource for each destination. Visit Seoul helps you decide what to do in the capital. Visit Busan Pass helps you compare paid admission options in Busan. Visit Jeju helps you plan around an island with several distinct areas. If Gyeongju is on your route, Korea’s national tourism site has English-language itineraries there, too. Here is what each one is useful for before you book.

Seoul: Build Your Plan on Visit Seoul

Open Visit Seoul when you are still deciding how to spend your days. The English-language site has attractions, restaurants, events, neighborhood guides, maps, and transportation information. Save a few places you want to visit, then check whether they fit together geographically. A day around Jongno calls for a different plan from one spent in Seongsu.

Visit Seoul is a travel guide, not an admission ticket. It also links to the separate, paid Discover Seoul Pass. Consider that pass only after choosing the attractions you genuinely want to enter. Check their individual admission prices, opening days, and pass conditions against your itinerary.

There is one small detail that matters on arrival: the physical Discover Seoul Pass can work as a transit card after you add a balance. The mobile version does not give you a card to tap at a subway gate. Read the current pass terms before buying for a transportation benefit.

Busan: Choose the Pass Around Your Actual Stops

Visit Busan Pass is Busan’s official tourist-pass platform for foreign visitors. It offers time-based passes and passes based on a set number of attractions. The question is not “How many sights can I squeeze into Busan?” It is “Which included places do I already want to visit?”

The 24- and 48-hour passes start their clock when you receive a ticket at your first included attraction. If you plan a beach afternoon, a long dinner, and only one paid activity, a timed pass may be a poor fit. A Big 3 or Big 5 pass lets you select a limited number of attractions from specified groups, so check those groups before deciding.

Also check which format you are buying. The mobile pass cannot be used as a transportation card. The physical card can be topped up for buses and subways, but you must collect it if you bought it online. That difference is easy to miss when both versions appear on the same shopping page. Attraction partners and terms can change, so make your final comparison on the official site.

Jeju: Plan by Area, Then by Season

Open Visit Jeju before filling every day with attractions. The Jeju Tourism Organization’s English site provides maps, guidebooks, themed trips, seasonal ideas, and places grouped by area—including Jeju City, Seogwipo, the east, and the west.

Use those area groupings to build a day that makes sense. Choose a part of the island first, then look for nearby food, walks, or experiences that fit the season. The site’s event listings can help you spot something happening during your dates; its map and guidebook are better starting points for the shape of the trip.

As with Seoul, Visit Jeju is a planning resource, so you do not need to buy anything to use its destination guides. Check the booking and access rules of any attraction you select separately.

Gyeongju: Give the Historic Sites Some Context

If your trip includes Gyeongju, start with the Korea Tourism Organization’s English itinerary, “Gyeongju: Heart of Ancient Korea.” It connects sites such as Yangdong Village, the Daereungwon tombs, Bulguksa Temple, and Donggung Palace and Wolji Pond into a suggested route. It is especially helpful when the place names are familiar but you are unsure what each stop represents—or how far apart they are.

The Two-Minute Check Before You Pay

For any city pass, write down the two or three attractions you would visit without it. Check their regular admission fees, opening hours, reservation requirements, and distance from one another. Then compare that plan with the pass price and activation rules. A pass saves money only when it fits the trip you actually want.

Use the regional sites to discover and organize; use the attraction’s own latest notice to confirm the final details. That small habit can save you from buying the wrong pass—or arriving at the right place on the wrong day.