As soon as you are properly hydrated and fortified at the mill, head west to the town of Essex where Connecticut River Expeditions runs a Fall Foliage Cruise aboard the RiverQuest.
Evening cocktail cruises aboard the Zoe Yacht are a particularly sophisticated way to watch dusk fall over the city, with a bartender creating perfectly blended mojitos while you and your friends enjoy 360-degree views of Istanbul's skyline from the yacht's raised flybridge.