Tender boats took us to shore which took a while which was a shame but there is no other option. Cable car or Donkey ride to get to the top. A drink and a meal watching the sunset and the ships below were the highlight.
Grand Bizarre is a bit crazy and over rated and over priced. The spice markets were great and we also went and observed a prayer service at the mosque which was a very special experience and probably the highlight of Istanbul. I personally wouldn't bother with bus transport as everything is within walking distance