It is called a "sand trap".
A "sand Iron" is a golf club (iron) designed to hit a golf ball out of a sand trap or bunker.
Yes, but why you would do so is beyond me.
I have heard a sand trap called a beach.
A bunker, although some call it a sand trap.
Trap or hazard
Sand dunes can help trap sand on a beach, they can also be called sand traps. It is a natural way of keeping sand on a beach.
.Sand Trap louvers and types of louvers
Sand Trap - 1998 is rated/received certificates of: USA:R
Tap the bottoms of your shoes with your club so the sand goes back in the bunker and then rake the bunker with the rake provided.
As long as you don't "ground" your club i.e. Hit the sand around the ball
The sand trap at Paradise Island Golf Club in Paradise Island, Nassau, The Bahamas (Right next to Atlantis Resort has the world's largest sand trap, which does not have a nickname.