Ocean Safety officials say they have advised the city's Parks and Recreation Department to close the beach area at Hanauma Bay Friday due to the high influx of box jellyfish stings.
The parks department agreed to close the beach as of 11:09 a.m.
Ocean Safety reported 25 stings between 9:30 a.m. and 10:30 a.m. on Friday. So far on Friday, there was a total of 35 stings.
Paramedics were called for one patient but the teenager was not transported to the hospital.
Only three box jellyfish were count on the shoreline when lifeguards opened the beach in the morning.
City officials say alternate snorkeling sites are Kailua Beach or Waimanalo.
Ocean Safety officials will reassess the situation Saturday morning to see if the beach area will be reopened. If there are no box jellyfish, the bay could open at 7:30 a.m. at the earliest.
On Thursday, nearly 300 jellyfish were counted at Ala Moana Beach Park and Waikiki Beach.