SANDY HOOK - Swimmers along the Jersey Shore are being reminded to not to jump in the ocean without a lifeguard present.

Two people have died this season while swimming after-hours, when lifeguards were off-duty. Without a trained professional on-duty, rip currents can create life-or-death situations quickly.

The National Park Service offers these tips for ocean swimming :

*Always swim in a lifeguarded area, if possible.*Never swim alone. *Talk to the lifeguards; ask about beach conditions and hazards. *Be aware of the currents and shore break. *Don't fight against the current. *Know your swimming ability, and stay within it. *Excessive drinking and swimming do not mix. *Children should swim only with adult supervision