Read the message that an NCO Academy student on vacation wrote to his comrade who lives in Três Corações, Minas Gerais.

Dear Lopes,

I arrived _____ Salvador three weeks ago. I spent two days _____ Itaparica Island and then went to the Green Coast by hitching a ride. The beaches there are great for surfing,especially Monte Gordo. I had a great time there. After 3 days, I went to Porto Seguro _____ plane and stayed there for another 3 days. I was so tired that I fell asleep all the way back _____ Salvador. When I got there, I took a shuttle from the bus station to the airport. When the shuttle arrived _____ the airport, I got _____ the vehicle without paying. I was so embarrassed but I apologized to the driver for that, and everything was OK. I am travelling back to Três Corações next week. I hope everything is ok with you! 
Take care,
Sarmento

Fill in the blanks with the suitable prepositions.