but I forget where.
It appeared to me the races were to be held in the East Passage between Rose Island to the north and Fort Wetherald (Jamestown) to the south. Castle Hill might be a bit far away (tho I may be mistaken about the southern extent . . .).
I believe the plan is to have the races visible from Fort Adams, which offers quite a long water frontage on the East Passage. Apparently, the state has done a lot of work on the Fort Adams State Park to make it more amenable to big events like the AC. I have no idea what they might be doing to alleviate the usual traffic chaos in Newport in summer . . .