Translation of manifestar

for a minute I blamed the burger that I had eaten at the duty free back in Cancun, but thinking a little further I recalled eating street food the night earlier, as it was Mexican independence day.
I also made a reservation for a daytrip in the nearby mountains. We went in the early morning and met again near the Huanchan road, close to the office. A ten-seater picked us up and we left.
I packed my belongings and went looking for my friend. I informed her about the situation and we left the island together. On the ferry she told me about the different travel options that I would have.