AC Hotel by Marriott Seoul Gangnam

The hotel opened in 2012 as Mercure Ambassador Seoul Gangnam Sodowe and was rebranded to AC Hotel by Marriott in 2022. The bathhouse is on a basement floor and still uses the pre-rebrand layout, with wooden lockers and solid-timber benches. There are two pools, warm and cold, and no hot pool. On a visit in August 2026 the displayed temperatures were 40.5C and 21C, and the warm pool has a bubble jet. The dry sauna showed 80.7C and has a full glass window looking back toward the baths. Washing is set up two ways: standing shower booths divided by frosted glass, and facing them, the seated wash stations familiar from Korean bathhouses. The changing room has scales, hair dryers and a fridge of bottled water. A sign on the entrance door states, in Korean and English, that mobile phones may not be used.

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