Wednesday on the Cape saw 16 great white shark sightings reported on the Sharktivity app.

A hammerhead shark was also captured on camera swimming off of Nantucket.

The first sighting of the day came in at 9:28 a.m. with a shark spotted 50 yards from the shore of North Beach Island.

There were also six distinct sharks picked up eight times by the four detection buoys.

According to users’ activity, a great white shark sighting was reported about 20 yards from North Beach Island.

Another shark sighting was logged near the same beach an hour before that.

In the same day, seven other sightings were detected near a buoy close to North Beach Island.

A Twitter user uploaded screenshots of several sharks which were detected by the app in the same day.