I lived in London for two years a decade ago - given school choices at the time we chose to live in the suburbs - we settled in the Wentworth estate and were full members of Wentworth within 30 days - while the West course takes a hit on this website the overall experience was phenomenal - three 18 hole courses (including the East, which remains my favorite 'short 18-hole course'), a 9 hole par 3, 13 tennis courts and a great gym/spa for my wife - of the name clubs Wentworth is the easiest to join but also the most expensive (still cheap by New Jersey standards) - friends of mine in similar positions have 'leased' memberships at The Wisley, also not a cheap option but likely still doable, and several others joined Royal MidSurrey, which is closer to central London and also easy to join; another friend joined Stoke Park, with 27 holes and I believe still accessible- the Wokings and Berkshires et al are fabulous, and are accessible for the day with one phone call, but are not 'joinable' in short notice - good luck!