 Turtle Island was retired from racing to become a breeding stallion made a very impressive start to his stud career, siring the 2000 Guineas winner Island Sands in his first crop of foals.His other offspring included the Prix d'Astarte winner Turtle Bow.He later established himself as a sire of National Hunt horses including Seabass, Bensalem (December Gold Cup) Scolardy (Triumph Hurdle) and An Cathaoir Mor (Arkle Novice Chase) and was moved to Coolmore's The Beeches stud in 2005.