Collars & Co. on Instagram: "These are the top 5 most exclusive East Coast clubs that even billionaires struggle to join. #1 Pine Valley, New Jersey — often ranked the best course in the world. Remote pine barrens, razor-fast greens, and a membership so secret even pros struggle to get an invite. #2 Shinnecock Hills, Long Island — founded in 1891, with windswept fairways and a roster packed with old-money families and East Coast royalty. #3 Fishers Island Club, New York — perched on a secluded i