Four items of pornographic material, some of which included images depicting rape, were also found concealed in the vessel they were transported in.
People also tried to smuggle in two items made using endangered species during that time. One was an ivory statue of a man and a child in a glass cover and the other was a lizard skin drum.
A New Zealand Customs Service spokeswoman said all vessels entering Tauranga were subject to a risk assessment to determine which ones would be searched more thoroughly.
Since the start of 2012, 2043 commercial vessels had arrived in Tauranga 772 came directly to Tauranga from an overseas port while the rest arrived from other parts of the country.
During the same period 118 cruise vessels had arrived in the city of those only two arrived direct from an overseas port.
Of those vessels only 45 were subject to a more thorough search. This could be anything over and above the usual check and clear function and could range from speaking to crew members to a full search.