TRENZ Christchurch will play host to the biggest event of the New Zealand Tourism calendar when Trenz returns to our city in 2020.ChristchurchNZ Chief Executive Joanna Norris says this is a well-deserved endorsement for the future of tourism in our region.“We are delighted to partner with Tourism Industry Aotearoa (TIA) and bring TRENZ 2020 back to Christchurch,” Ms Norris says.“The last time