Porto Seguro is in the southern part of the Brazillian state of Bahia. The region possesses amazing beaches and preserved areas of Mata Atlântica, an original tropical jungle found by the Portuguese discoverers in the year 1500.
If you are already in Brazil, it is cheaper to take a bus from a major city than to fly. You can take a bus from Salvador. It is an overnight bus ride that takes around 12 hours.
If you are staying in the down town area, you can walk most places. You can actaully walk down the hill from the bus station to down town. If you are unfamiliar with the city and have bags, it's better to get a taxi.
If you book tours, they will provide transportation. There is also a bus system if you want to get out of down town. To see Arrial D'Ajuda, take the ferry across the river and take a bus to Arrial.
Porto Seguro's nightlife is one of the most popular attractions for young people.