Keep the names separate
Ussher Fort and James Fort are distinct Accra heritage sites listed by Ghana Museums and Monuments Board. Their proximity in a neighbourhood itinerary doesn't make them interchangeable. Label them separately in your plan so the group knows which visit has actually been arranged.
An exterior walk and an interior guided visit also offer different experiences. Be clear about which one your guide or operator is proposing.
Ask what the visit will explain
A useful tour should connect a building with its changing uses and the people affected by them. Ask whether the emphasis is architecture, colonial history or a broader neighbourhood story. That helps you decide how much time to allow.
Avoid treating a fort as a dramatic backdrop detached from its history. Leave room for questions and for the group to process difficult material.
Do not infer entry from a map pin
Confirm current access, fees and the meeting point with the relevant host. A listing can help you locate a site without guaranteeing every part is open.
Compare Ussher Fort and James Fort before choosing your route. If only an exterior visit is possible, ask a guide what can still be meaningfully explained from outside rather than improvising your own historical account.