The night is a few streets, not a district. After dinner people walk the riverfront, then sit where there is music. Kaseko and kawina bands, reggae, dancehall, and karaoke are the usual rooms. A club that plays one imported style exists, and it is not the whole city.
Thursday, Friday, and Saturday are when kitchens stay open and bars fill. On other nights, eat early. Many warungs are done by nine. Casinos are lit and easy to find. They are a fact of the city at night, not a reason to come.
A waka pasi, a walking party with stalls and sound, turns the Palm Garden or a square into the evening when one is scheduled. Around New Year the whole center is awake. On a quiet week, do not expect it. If the square is being set up at dusk, stay.
Heat does the damage, not a dress code. The street is warm and a bar with air conditioning is cold. Drink slowly. Parbo is the beer on the table. Leaving a bar to catch a boat at dawn is how people miss the boat.
While you are there
Ask before you film people dancing. Agree the taxi fare before you get in, or have the bar call the car. Do not walk quiet inland streets late with a phone in your hand. Buy a drink if you are using the table.