Even though it is a small city Manama has a great nightlife which is owed to the more liberal laws compared to other countries. Tourists are allowed to drink, but be careful not to overdue it because the police are known to arrest people for excessive drinking.
There are a great number of pubs and clubs that offer great fun in Manama. The clubs usually play house, R&B, hip-hop, some of them play Latine and there are some Arabic/Lebanese which play Arabic music. There is a happy hour in most bars where you can get cocktails for a low price. If you do not want to listen to the loud music then you can go to the pubs and bars where you can enjoy talking with your friends or you can play a game of darts or pool.
One of the most popular clubs in Manama is Diggers. It is decorated as a mining cave. There are bands that play live music and the drinks are not so expensive. The staff is friendly and professional.
Another popular place is Hard Rock cafe where you will get all the rock music that you can hear.
If you want to sit and enjoy you can visit RIc's Kountry Kitchen. This place also has large screens which play sports events. It offers a quiet and intimate feel.
Owing to the large number of clubs and pubs and to the not very strict drinking laws Manama is a great place if you want to spend a good night out.