CHIM CHILL BANG OR SPA OR A SAUNA THEY ALL MEAN THE SAME IN KOREA AND THIS ONE I AM INTRODUCING IS HUGE, CLEAN AND IS CHEAP TOO.
EVERYONE I KNOW HAS BEEN THERE.
IF YOU ARE LOOKING FOR GOOD YET ECONOMICAL SAUNA THEN VISIT DRAGON HILL - 3 MINUTES WALK FROM YONGSAN STATION.
BTW DO U KNOW THAT YONG IS A DRAGON AND SAN IS A HILL, HENCE THE NAME!