"... which is around 76 km miles from St Vincent..."

What does it mean? Are kilometres or miles finally meant? Or may it be a typo?

Question

"... which is around 76 km miles from St Vincent..."

What does it mean? Are kilometres or miles finally meant? Or may it be a typo?

Answer

Maybe a typo. The writer got confused about which unit of measurement.
However, it could be a punctuation mistake. Maybe:

... which is around 76km, miles from St Vincent ...

i.e. spoken with a pause after '76km',  then 'miles from St Vincent' said as an afterthought - really far from St Vincent.

Answer

Must be a typo. “km miles” does not make sense.