

We may have just gotten lucky. I also had a great time in Venice once by wandering off randomly and ending up somewhere I can only assume tourists don’t normally go. We bought some fruit off a boat which was both delicious and very affordable, so I assume the target demographic was not tourists. I’m pretty sure that’s not the universal experience of Venice either.
You’re much better off just doing it in one go. What you are considering doing is called structuring, and will, unlike making a large transfer, result in mandatory reporting and a money laundering investigation.
https://en.m.wikipedia.org/wiki/Structuring