The Great Archipelago, dominated by the Comanate Empire, lies pretty much directly opposite our customary stomping grounds.
Each of those hexes is about 1,000 miles wide.
This is a very old map I drew of the Archipelago many, many years ago. It is sadly faded and foxed, but it still serves to show the main islands of the various island chains. There are also thousands of tiny uncharted islands, not shown at this scale.
The city of Comana lies directly in the tropical zone; the climate is similar to that of the Greek islands in the Aegean. Here are a few "flavour" images — the cultural vibe is basically pre-Ottoman Byzantine.
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