Translation of puerile in Spanish

Our main destination was not Cambodia and we had actually decided in the last minute to add this country to our trip. We were very happy about our decision and enjoyed every moment here.
After ten minutes and after drinking a bottle of water we returned to our place. It was already three in the morning. We were unhappy to miss a great party, but our physical conditions were bad.
In the evening we stayed in our room, watching an old James Bond. On the second day, we went to the Bellavista neighborhood and ate at a Chinese restaurant, rice is supposed to be good against stomach pain...