riptide, rip current, offshore current - a strong surface flow of water returning seaward from near the shore.

be careful, watch out / take care

to be careful about ~

Alternative spelling of 気を付けて

to swim

feeling, sense / air, gas / air, nature, disposition, sense / spirit, mood / inclination, will, mood, urge

feel like; have a feeling that

please give me / (expressing a request) please do something for me

Please do (action)

Please do not (do)