The summer break may represent a rest time for the horses but for the industry it's a hive of activity, with retirements, stable transfers and the arrival of new equine blood from overseas markets. David Hall has been a major beneficiary of the retirement from Hong Kong racing of David Hayes, picking up his high-class galloper Ain't Here, owned by property tycoon Robert Ng Chee-siong. Although the Victoria Derby placegetter has only won two races from 23 starts since his importation in early 2003, he's become a solid performer at the highest level and had the misfortune to bump into Bullish Luck at the top of his form on two occasions last season. Hayes had another good galloper for Ng in New Zealand Group One winner Happee Owner, with that gelding having gone to the Tony Cruz stable. Sophomore trainer Almond Lee Yee-tat has had to fly the 'house full' sign after a commendable initial season which saw him prepare 25 winners. His nine years of loyal service to Hayes was rewarded when the departing Australian widely recommended him to owners, and his acquisitions from Hayes include Sha Tin 1,400 metres record holder Planet Ruler, the handsome black stayer Beethoven and the emerging talent Tchaikovsy. Super Kid, formerly prepared by John Size, is now with John Moore and has already been shipped off to Melbourne where he'll kick off an ambitious campaign in the Group One Dubai Racing Club Cup at 1,400 metres later this month. Cruz's team has a very similar look about it, because so many of his stars just had to retain their places in the yard. Silent Witness, Bullish Luck and Very Fit are all back, while an interesting new arrival is Eye Witness who, as the name suggests, will race in the black and green livery of Archie and Betty da Silva. Tony Millard picked up two experienced horses, Mastery and Speeding Molly, who spent last year under the care of Paul O'Sullivan. Mastery won an all-weather trial on Tuesday. The stable of Peter Ng Bik-kuen has grown to 49 and an interesting acquisition is Sunrise Rainbow, a Danehill gelding who mixed his form last year but has winning credentials at both tracks. Raider, who won two Group One races in New Zealand as a two-year-old when racing under the name of Grout, has left Cruz to join the Caspar Fownes yard. Fownes also picked up multiple winner Supersonic from the leading handler. Danny Shum Chap-shing is another trainer without an empty box, and has some quality arrivals courtesy of the decision by owner Peter Law Kin-sang to follow Shum's newly retained stable jockey Shane Dye. Law, best known for his 2003 Horse of the Year Grand Delight, has shifted Great Delight, Classic Delight and the exciting, unraced three-year-old Prime Delight from Size to Shum. Size, meanwhile, has his 2004 Queen Elizabeth II Cup hero River Dancer, owned by Ronald Arculli, back in work. He also picked up some of the horses from the David Hill yard when the former championship-winning mentor was not re-licensed for the new term. Size has Thousand Wins, Don Ricardo, Dantheman and Don Felipe - all formerly with Hill - while class galloper San Lorenzo has found his way across from the yard of Dennis Yip Chor-hong. Sanziro, who showed some promise late last season for the Shum stable, has been moved to Derek Cruz and has been one of the star workers at Sha Tin in the last few weeks. Improving stayer Syllabus, who won twice for now-retired Alex Wong Siu-tan, is now a stablemate of Hong Kong's best stayer Vengeance Of Rain, under the tutelage of David Ferraris.