It's very easy to get Búzios, buses are the best option. There are 7 daily departures from Rio's bus terminal and once a week from São Paulo.
If you are arriving at Rio's International airport, a transfer service could be your best option, since it departs from the airport direct to the hostel. Prices are around US$19 and reservations should be made in advance. If that's your option you can email us with your flight data and we'll be glad to make all arrangements at no extra cost.
Arriving in Buzios, ask the driver to stop at the next corner to 'Shopping 5000' (a small mall at the main avenue, 1 block from the hostel ). You will see us - the orange house - the first at 35, Marisol Street.