A bonus code is a text that casinos and betting sites offer their players to be used for special promotions and at specific times. The string of text differs from site to site and game to game, and it expires after some time. Players thus need to make timely use of codes before they expire.
For those who are looking for a diver's paradise then they are looking for the Cayman Islands. This is a region that was known for its prohibition of all forms of gambling. Recently there has been some talk about changing this which would open up opportunities for mobile online gambling for residents.