I have a special interest in church and monastic archaeology, so my first idea was of a tour of the early churches in Wirral and the priory. Probably Holy Cross, St Bridget's, St Andrew's, St Hilary's and St Mary's.
They are all sites that were most likely Saxon in foundation. I actually would put money on St Hilary's being one of the oldest christian sites in the country.
I think I'd get a decent uptake for this from older people. The other idea would be a general tour including sites such as the Priory (which is soooo poorly organised and signed), Storeton Hall, parts of the Roman road system, the Dawson Brown Museum, etc.