How does the public transport system work in Rotterdam?
There are many options to get around the city; there are buses, taxis, trains, trams and even a Waterbus.
You can easily plan your trip on this website 9292.nl (which is also available as app). More information about the tram and metro can be found on ret.nl.
At night, BOB busses drive around the city that can get you home safely. The BOB busses can be found on the website below and are indicated as B1, 2, 3 etc.