With the above-mentioned change in the travel market, prompted by the opening of the Garden State Parkway in 1947 and the opening of Monmouth Mall away in Eatontown in 1960, Asbury Park's downtown became less of an attraction to shoppers. Office parks built outside the city resulted in the relocation of accountants, dentists, doctors, lawyers, and other professionals. Moreover, the opening of Great Adventure (on July 1, 1974), a combination theme park and drive-through safari located on a lake in Jackson Township—and close to a New Jersey Turnpike exit—proved to be stiff competition for a mile-long stretch of aging boardwalk amusements.