According to forum posts, navigating the subway system in Seoul is straightforward, with comprehensive signage in multiple languages including English. Travelers have highlighted the ease of transferring between lines and utilizing the T-Money card for convenient fare payments.

Some travelers said that buses are an accessible option for transportation. Specific bus numbers and routes are mentioned, such as Bus 6005 from Seoul City Hall to Incheon International Airport, and various buses like 86, 100, 720 connecting Suwon Station to Suwon FC Stadium.

For many users, the T-Money card comes highly recommended for public transport payment. It simplifies the process of paying fares on both subways and buses and allows for free transfers between them. This card can be reloaded with cash at convenience stores or subway stations.

Travelers have called out that while taxis are available, they are generally more expensive compared to public transport options. The subway and bus systems are preferred for their efficiency and cost-effectiveness.

According to forum posts, Incheon Airport offers currency exchange services, but the rates are generally not as favorable as those found in the city, such as in the Myeongdong area. Travelers have noted that exchanging a small amount at the airport to cover immediate expenses and then exchanging the rest in the city is a practical approach.

Some travelers mentioned that the exchange rates for different currencies like USD, Euros, and Taiwan dollars are better in Myeongdong compared to the airport. For instance, one user reported receiving a higher exchange rate for USD in Myeongdong than at Incheon Airport a few years ago.

Travelers suggest checking current exchange rates and possibly exchanging a small amount at the airport that is necessary for initial expenses. For larger amounts, it's recommended to exchange currency in Seoul, where better rates are typically available.

Some travelers have mentioned various activities available inside Incheon Airport itself. The airport offers facilities like Spa on Air in the basement, lounges, and free internet access. Also, there are free transit tours provided by the airport, such as the 8 AM-1 PM tour to Seoul.

For those considering leaving the airport, one suggestion is to visit the Hongdae area of Seoul, known for its vibrant nightlife and shopping. However, traveling to central Seoul requires consideration of transportation time and the operational hours of public transport and attractions.

Travelers are advised to check the Incheon Airport’s official website for updated information on activities and facilities. This can help in planning activities based on the current operational status, such as whether layover tours are active during the pandemic or not.

According to forum posts, popular hotel choices in Seoul include the Westin Chosun, Lotte Hotel, and Hotel28 Myeongdong. Travelers have highlighted these for their proximity to tourist attractions and restaurants.

For luxury stays, some travelers recommend the Four Seasons, Shilla, and Le Meridien. These hotels are noted for their upscale amenities and central locations close to shopping and dining areas.

Travelers seeking good value and convenience mentioned the Metro Hotel and Ibis Ambassador in Myeongdong, appreciated for their central locations and easy access to public transportation.

For those looking for more budget-friendly options, the Hotel The Designers Seoul Station was recommended. It offers comfortable rooms at reasonable prices and is well-positioned for exploring major tourist sites.

For families, Orakai Suites Insadong was praised. It provides spacious accommodations with kitchen and laundry facilities, making it ideal for longer stays with children.

Some travelers have noted that dining solo in Seoul can be challenging, particularly at Korean BBQ restaurants, which typically cater to groups. However, alternatives such as street food, food markets, and restaurants within department stores and community centers are recommended for solo diners. Options like Pomato, a local chain open 24/7, are also suitable for solo dining.

For vegetarians, forum posts suggest visiting Gimbap restaurants, Korean buffet restaurants, Isaac Toast, and tofu restaurants. These venues are known to accommodate dietary preferences well. Additionally, the Happy Cow app is recommended for identifying vegan and vegetarian dining spots.

For a unique dining experience, Samgyeopsal cheese fondue, which involves grilling meat and dipping it into a rim of melted cheese, is a popular choice among food enthusiasts. This dish is available at several meat restaurants, including Shinmapo near Jonggak.

For traditional Korean dining, areas like Myeongdong are recommended. Here, visitors can explore a variety of local foods and enjoy the vibrant street food scene. Myeongdong Kyoja is highlighted for its simple, traditional dishes like kalguksu and mandu, ideal for solo travelers seeking authentic Korean flavors.

According to forum posts, the availability of JSA tours is often restricted due to various reasons, including political situations, military activities, and health concerns like the COVID-19 pandemic and African swine virus outbreaks. Some travelers mentioned that these tours need to be booked well in advance due to their infrequent schedule and high demand.

Several users have pointed out that a specific operator, Koridoor, is frequently recommended for JSA tours when they are operational. However, it's essential to check the latest status directly with tour providers, as the situation can change quickly. Travelers have pointed out that all tours to the JSA require adherence to strict security measures, including dress codes, passport checks, and restrictions on photography.

As of the latest updates shared by forum members, the JSA tours were suspended following an incident involving a U.S. soldier crossing into North Korea. There is no clear indication of when these tours might resume, impacting travelers' plans who wish to visit this notable location.

According to forum posts, for visitors staying in Myeongdong, the Korean BBQ house RAON is recommended as a good option. It is located near Gogung Bibimbap and about 50 meters from Myeongdong Station exit 9. Another option is Hanam Pig, known for grilling high-quality pork, but be prepared for waiting times due to its popularity.

Some travelers have inquired about all-you-can-eat Korean BBQ restaurants in Myeongdong where guests can select their own meat and vegetables for grilling. A recommended place provided in the forum is accessible via a shared link, which details the location and likely offers an English menu along with the typical side dishes known as banchan.

For those looking for variety, travelers have called out Saemaul Sikdang as a local favorite in Myeongdong, known for its affordability and authenticity. This restaurant offers a traditional Korean BBQ experience with self-cooking options and is a convenient choice for English-speaking visitors.