I've hardly ventured to Gangnam in many of my trips to Seoul for work, doing so only on the few occasions when I've to attend trade shows at COEX. If Gangbuk (North of Hangang) represents Seoul's rich cultural heritage, then Gangnam (South of Hangang) personifies what is cool and hip, and the future of the city. My personal top three must-see places in Gangnam are Sky 63 City, Banpo Bridge Fountain (near Marriott Hotel) and COEX.
Sky 63, the gleaming skyscraper, is Seoul's tallest building with magnificent views of the city and the River Han from its observatory. Cheapest and fastest way to go there is by metro to Yeouido Station, followed by a short shuttle or taxi ride. There are several attractions housed inside this building to make one's trip here worthwhile, and our time there passed by very quickly. Buy the bundled ticket which includes entry to the aquarium, art gallery and wax museum as well. For people who are queasy about taking the open tram and cable car up Namsan, this is a viable alternative to enjoy a bird's eye view of the sprawling metropolis Seoul.
In the evening, take a taxi to the double decker Banpo Bridge to watch the amazing fountain show (about 20mins). Banpo Bridge is one of the many bridges linking Gangbuk and Gangnam. There are nozzles positioned at the top of the entire bridge that spans across the River Han. Lighted water jets spewing from the top of both sides of the whole stretch of Banpo Bridge down into the Hangang is indeed a sight to behold. Show times are at 8pm and 9pm daily, with extra shows at 8.30pm and 9.30pm on weekends and holidays.
My #3 for Gangnam is COEX, an integrated complex comprising mall, convention centres, offices, hotels, residences and transport interchange. Many of the stores in COEX can be found elsewhere in Apgujeongdong and Myeongdong, but when one is visiting Gangnam, COEX is worth a pitstop - if only to marvel at its sheer size, feel the vibe of all the activities going on inside this huge complex and do some people watching in one of its many cafes. Although one is less likely to run into a familiar K-pop or Hallyu artiste in COEX compared to Apgujeongdong, COEX is not just a hub of commerce but also offers a glimpse into the lifestyles of the young, urbane and well-to-do Seoulites.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.