Details are on Birkenhead Priory Website

Went today with two children age four and five. We had a good time. They enjoyed making Viking friendship bracelets and grinding wheat and barley.They went to the Museum and did brass rubbing,puppet theatre and dressing up.There were more activities and plenty of places to explore.
It was fun climbing the Tower and at least one hundred steps up.The views are worth the effort and ships were in dry dock.As mentioned on this forum before the small plaques with the names of each person lost when The Thetis went down was most a fitting memorial. I will go again to read each one when I don't have children in tow.

The HMS Conway Museum was most interesting.

It was free with donations if you wished to contribute.
Good place to spend a couple of hours but you need to take your own refreshments.