Except for their belongings, which fitted on a handcart, all the Jennisons took with them to Belle Vue was two or three birdcages containing parrots and other assorted birds. At its opening in 1836, Belle Vue contained an Italian Garden, lakes, mazes and hothouses, as well as the aviary. The family decided that their zoological collection had to be expanded as a matter of priority, and by 1839 elephants, lions, and other exotic African animals had been added. Many other attractions were subsequently added, including a racecourse in 1847. The gardens were an immediate success, but the neighbouring St James's Church was offended that they were open on Sundays, and asked Jennison to close while services were being conducted; he "politely but firmly refused".