Dyrham Park Country Club is a Grade II-listed country house, estate and golf club in Hertfordshire, England, several miles northeast of Borehamwood, and to the north of Barnet. It is a white Palladian mansion, set in two hundred acres, with an 18-hole golf course, adjacent to East Barnet Golf Club. The estate was originally settled as a manor in Elizabethan times and the current Palladian mansion was built in the 19th century. The houses was renovated in the 1960s and the golf course was established in 1963. It is ranked as the eleventh best golf course in the county by the website Top 100 Golf Courses. In its history it has hosted numerous championships, including the 1974 JNF pro-am golf tournament, featuring 136 golfers. Due to its close proximity to Borehamwood Studios it has been extensively used as a filming location for numerous TV series and films, including The Saint, The Avengers and the "The Smile Behind the Veil" episode of Randall and Hopkirk (Deceased) in the 1960s and films such as The Strange World of Planet X (1957) and The Secret of My Success (1965). A lake is located in the grounds.