Boost ON
Weight training + cardio
Strength work and conditioning together in one coached hour.
Mon–Fri (not Thu) · 07:00, 17:00, 19:00, plus 10:00 on Tue & Fri
Gangnam, Seoul · Group training · HYROX training club · Since 2021
Sweat on Seoul is a group training gym in Gangnam where you do nothing but train. Expect it to be harder than your gym back home, and expect to keep going until you’re sick of it. Visitors can join with a One Day Pass.
Please book on KakaoTalk the day before. We accept walk-ins, but a spot isn’t guaranteed.
The space
Racks, a rig with rings, curved treadmills and open floor. Nothing in here pulls your focus off the work.







Plan your visit
Message us on KakaoTalk at least a day ahead. Pick a day and a class below, and we’ll write the message for you in English and Korean.
Times are Seoul time (KST). Greyed-out days have no classes left.
A One Day Pass covers one class.
Pick a day first.
Copy the message, open our chat, and paste it in.
Pick a day and a class first.
Weekly schedule · 2026
Classes
CrossFit-style functional training in small coached groups. We train like CrossFit, but we aren’t a CrossFit affiliate.
Weight training + cardio
Strength work and conditioning together in one coached hour.
Mon–Fri (not Thu) · 07:00, 17:00, 19:00, plus 10:00 on Tue & Fri
Cardio
A conditioning hour built around cardio, coached in a group.
Mon–Fri (not Thu) · 18:00, 20:00, plus 10:00 on Mon & Wed · Sat 10:00
Race prep · max 8 people
Skills and intervals on weekdays, with about 40 minutes of work. On Saturdays the 08:00–09:30 slot is a race simulation with about 60 minutes of work, led by coaches Louie and Kihun.
Mon, Tue, Wed, Fri 08:00 · Sat 08:00–09:30
Prices · US dollars
$40USD
$150USD
Prices as posted by Sweat on Seoul in February 2026. Your KakaoTalk booking message already asks how to pay, so you’ll get payment details in the reply. Staying longer? Ask in the chat about monthly memberships.
Location
We’re moving this winter. Check the date of your visit and go to the right place.
Coaches
FAQ
Also in Singapore
Our first gym outside Korea runs the same Sweat On, Boost On and HYROX programs, and it opens in November 2026.