When we were in Cap Cod, we were warned about it

[theking]

...as sharks love that kind of environment:

This Popular U.S. Beach Destination May Have the World's Highest Concentration of Great White Sharks

However, a new study has found that one of the largest seasonal gatherings of white sharks is right off the coast of Massachusetts in Cape Cod. In fact, the influx of great white sharks in Cape Cod is the first documented hotspot in the North Atlantic and may be the largest in the world.

I took these photos of the Cap Cod's calm water surface but I know this duck wouldn't dare to go swimming in there as tempted as he/she may be.. :