Riverside Country Park is a large coastal public park, situated alongside the River Medway estuary between Gillingham and Rainham. The park covers about 100 hectares - approximately 247 acres (1.00 km2). There are a variety of natural habitats within the park, including mudflats and salt marsh, ponds and reed-beds, grassland and scrub, which provide a haven for wildlife.

Rainham is a town in the unitary authority area of Medway, in the ceremonial county of Kent, England. The town forms a conurbation with neighbouring towns Chatham, Rochester, Strood and Gillingham.