Urbanisation is an increase in the number of people living in towns and cities. Urbanisation occurs mainly because people move from rural areas to urban areas and it results in growth in the size of the urban population and the extent of urban areas.
The Europeans tried so hard to find an all-water route to the Spice Islands becuase they wanted to find a faster route to the New World. Going by land took to long so they wanted a short cut.
Answer: They wanted to find a faster route to the New World.