Translation of subsoil in Spanish

When we got our room at the Rex we were shocked once again. The room had a terrible smell of cigarettes and we insisted on moving. The next room they gave us was a non-smoking room.
I saw your pictures on facebook, some great images. Are you from Los Angeles? Why do you wanna learn Spanish? well if you want you can try your Spanish with me, i am from Paraguay, i am 29 years old.
One hour later, at sun set, we overflew the amazing Misti volcano which is located right above Arequipa. The mountain had a golden glow and its view was breathtaking.