Gosport Heritage Open Days is not alone in creating wonderful Free To Explore events, tours and talks for the annual National Festival that is Heritage Open Days every September.
Here are some links to local events nearby.
Havant
Havant Heritage Open Days Facebook Page
Portsmouth
Visit Portsmouth – Heritage Open Days
Southampton
Visit Southampton – Heritage Open Days
Winchester
Also worth checking out in Winchester
Book tickets on Eventbrite – There is a fee for this event.
The Captain Swing-Riots – from village unrest to execution in Winchester