Begin by getting your bearings in Busan on a hop-on-hop-off-bus tour, which zips you between top attractions such as Haeundae Beach and the Busan Museum, where you can get an introduction to the history and culture of this coastal city.

Spend the afternoon on the coast; rent a car and travel independently, or opt for the convenience of a tour that takes you to such seafront staples as the Haedong Yonggungsa Temple and the Songdo Skywalk, from which sweeping views of the South Sea are guaranteed.

Devote your evening to the bright lights of Busan by taking a panoramic sightseeing tour by bus or opting for a cruise that reveals the coastline in all its illuminated glory. Evening highlights include sweeping views from the Mt. Hwangnyeongsan Observatory.

Rise early and head straight to Gamcheon Culture VIllage before the crowds. This must-see sight is a staple of sightseeing tours, which typically give you free time to explore the colorful cubicle houses, galleries, and cafés and provide historical context.

On your second afternoon, choose between visiting the Busan Sealife Aquarium—a must for families—or exploring Jagalchi Market, the largest seafood market in Korea, on a food tour. If you plan to visit the aquarium, save time by purchasing skip-the-line admission tickets in advance.

Nighttime activities in Busan are plentiful: Catch a movie at the famous Busan Cinema Centre; join a guide to explore night markets selling South Korean street food; or shop for souvenirs and skin-care products in bustling BIFF square, where the annual Busan International Film Festival is held.