Tracking data from SPOT tags reports the whereabouts of tagged white sharks.

According to the OCEARCH Global Shark Tracker, two SPOT tagged female great white sharks (Carcharodon carcharias) have recently reported in from the waters off of Jacksonville, FL. Pings from the sharks named “Mary Lee” and “Genie” have been transmitted from near Jacksonville within the past 48 hours. However, it is “Mary Lee” who has been making headlines, due to the fact that she entered the surf zone of Jacksonville Beach yesterday morning.

According to CNN, OCEARCH alerted Jacksonville police that the 16′ (4.8m), 3,456 lbs (1,568kg) great white shark had come within about 200m of the beach yesterday. The alert prompted police to issue a warning for potential beach goers to avoid the area.

According to the OCEARCH Global Shark Tracker data, “Mary Lee” headed back further offshore within a few hours of entering the surf zone.