Always be mindful of the Current out in the water. Even when it looks calm it can be more dangerous than you think.. this group of peoplethe three there standing in waist high water were enjoying a quick dip splashing around, they ventured north about 15 yards where the sand level dropped a couple feet even though they didn't go any farther out all of a sudden they were in shoulder high water and in the middle of a rip that was just forming. I was keeping an eye on them (as was Oscar the volunteer lifeguard unbeknownst to me) it was clear that they could still just barely touch but they were struggling to get back to the sand. They clearly didn't know anything about getting out of a rip as they just kept trying to go straight to the sand rather than going to one side or another. About 5-10 minutes of seeing that they were still safe but def not able to move anywhere I started worrying.. I was walking over to yell at them to go parallel with the shore to get out of the rip as Oscar came out with his board and got the couple that were getting pulled out to sea and I directed the other girl to come parallel to escape the rip. When she got out of the rip and was good she told me she was getting really tired from fighting the current. I explained to her how to avoid that in the future.. Always be mindful of the Ocean's power even when it looks relatively calm.