Since the Middle Ages, a ferry service operated across the river Mersey between Eastham and Liverpool, the early ferries being run by monks from the Abbey of St. Werburgh. By the late 1700's, up to 40 coaches each day arrived at a newly built pier, carrying passengers and goods for the ferry. Paddle steamers were introduced in 1816 to replace the sailboats, but the demand for a service declined in the 1840's with the opening of a railway link between Chester and Birkenhead Woodside Ferry. In 1846, the owner of the ferry, Thomas Stanley, built the Eastham Ferry Hotel and shortly after, the Pleasure Gardens were added to attract more visitors. The gardens were landscaped with Rhododendrons, Azaleas, ornamental trees and fountains. Attractions included a zoo, with bears, lions, monkeys and antelope, an open air stage, tea rooms, bandstand, ballroom, boating lake, water chute and a loop-the loop roller coaster. Entertainers performed in the gardens during summer, and included Blondin, the famous tight-rope walker who once wheeled a local boy across a high wire in a wheelbarrow.

Going on from the pics posted by chiccy, the first 2 which are described as fireplace type things, since we were kids we have always known these to be the lions dens, get inside them and you can see scratch marks on the sandstone.
They were probably more mundane than a lions den, but have since told kids and nephews etc that is what they are, so the legend lives.

thanks ...

were could i find more on the history of this place? seems very interesting to me!