Translation of plunge in Spanish

All sorts of people were sitting in the restaurant, locals as well as foreigners. One could see that the city had some modern places too and that it was not the Vietnam we had imagined.
We stayed in this place for quite a while as it was the most spectacular place we have visited so far. It was unbelievable how much thought was put into construction of these magnificent sites.
Your Spanish is excellent, I can understand you very well. I have been learning English for almost 2 years. I have visited a language school and now I am learning in the Internet. See you soon.