At the 2011 Gucci Masters, a prestigious show-jumping event that begins in Paris this weekend, spectators can enjoy free on-site manicurists and hair stylists, a Champagne bar and a private pony paddock for children.

It's typical glamour for a sport that has attracted celebrity offspring such as Georgina Bloomberg, daughter of Mayor Michael Bloomberg, and Jessica Springsteen, daughter of Bruce. Hong Kong is also part of the show-jumping series, and organizers are now planning to add a third site.

They've...