Unable to answer "What type of tourist information is this?" – Custom House (Information) – way/167177315 via StreetComplete 58.2:

Information centre is now closed

new turbine

the Arnagill Tower is here. some sort of stone folly tower with castellation at the top

Cafe called “Junction 21 Tea Room”

There’s no castle here. It’s a ruined church

I discovered recently that this permissive path over the bridge INCLUDES permission for cycles and motorcycles. It is not (yet) signposted as such.