Located within the Chinatown area is a steep flight of stairs to a hill top. To go there, you just need to go opposite the Busan station, and here is the google location.

168 Stairs Monorail (bottom)
https://maps.app.goo.gl/qnbn7DdG16nwZqkbA?g_st=ic

The climb is fun because there are quirky decorations along the journey for you to pause and take some pictures. When you enjoy the process, then the work will be easier.

At the top of the stairs is a cafe with fantastic view and food. There are 3 storeys and you can find your spot with a good view there.

After resting at this cafe, you can continue to go up and visit the guardian spirit shrine

Further up and beyond this shrine is a bus stop where you can take bus number 190 to go back to Busan Station. This will save your knee cap from trotting down the same flight of stairs! But for the younger folks, you may simply go back the same way you came.