Rip currents can sweep even the best swimmers away from shore into deeper water.
ADDITIONAL DETAILS
Strengthening easterly swell will continue to bring a high risk of rip currents along east facing reefs of the Marianas, now through at least late Friday afternoon. As tropical disturbance Invest 90W passes near the Marianas, swells along the lee side of said system may continue to bring elevated surf along east and potentially south facing reefs during the weekend.
Recommendations
If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.