Newark Castle and Gardens - "This listed 12th century monument is set in beautifully maintained Green Flag winning gardens, with the River Trent flowing beside them. Designed by eminent Victorian landscape architect, H.E. Milner, the Grade II listed gardens were officially opened on 24th May 1889, the day of Queen Victoria’s 70th birthday." "surfaced pathways through the Castle grounds are suitable for wheelchairs" - from the Newark and Sherwood Council website