Some countries don't need inetrnational licence ?

I have Bahrain DL now.

for someone who need to go through the process.

the department is now located at driving school not at traffic department.

see one of the information staff - often they are policemen, ask you are here for conversion. he will give you a form and ask you to come back. he will also ask you to show your DL from origin country.
fill the form and see him again - he will give you a number ticket for eye test
do eye test (2 min) and then back to him.
he will take you or indicate the counter to process it. to process you need copy of CPR and origin DL so prepare these before you go. it will be easier.

pay 25BD for Bahrain DL + 5 BD for eye test + 2.5 BD for information book.

wait for 5 to 10 min. you will have a DL which is still warm.

cheers,