Rambling old riverside pub on two levels, extensively refurbished March 2025. Downstairs bar opens onto rear patio, which overlooks the River Thames, and separate function room also available. Up to three real ales usually available, including a guest. Food available daily from extensive menu. Pub name relates to a member of the Grand Order of Water Rat's horse. A blue plaque commemorates the founding of the entertainment industry charity here in 1889.