'Y' or 'E' before 'Icebergs'?

I want to write a phrase that goes "En aquella ubicación del mar hay muchas rocas y/e icebergs.", however, I do not know if I should put 'y' or 'e' before the word 'icebergs'.

I have alredy read that, when a word starts with 'i' or 'hi', you must change the 'y' to an 'e', but in this case, the word 'iceberg' is foreign, therefore, it is pronounced as 'aisberg', so the written form starts with 'i' but the pronounced one starts with 'a', so what should I put here?