“bathe” in Japanese is 浴, read yoku, a (よく, あ). It is a Grade 4 Kyōiku kanji, taught in year 4 of Japanese elementary school, and appears in words such as 入浴 (taking a bath).
What does 浴 mean?
朝、シャワーを浴びる。
Same sound, different character — the classic trap. Compare them side by side: