Local Chinese play lion dance to welcome the Chinese icebreaker Xue Long in Christchurch, New Zealand, Jan. 17, 2015. Chinese icebreaker and polar research vessel Xue Long arrived at Lyttelton Port in Christchurch on Friday. The Christchurch City Council and Antarctica New Zealand welcomed the vessel in Maori style. (Xinhua/Su Liang)

 Consul General of China in Christchurch Jin Zhijian (L) introduces Xue Long to Chief Executive of Christchurch City Council Karleen Edwards in Christchurch, New Zealand, Jan. 17, 2015. Chinese icebreaker and polar research vessel Xue Long arrived at Lyttelton Port in Christchurch on Friday. The Christchurch City Council and Antarctica New Zealand welcomed the vessel in Maori style. (Xinhua/Su Liang)

Guests and local residents visit the Chinese icebreaker Xue long in Christchurch, New Zealand, Jan. 17, 2015. Chinese icebreaker and polar research vessel Xue Long arrived at Lyttelton Port in Christchurch on Friday. The Christchurch City Council and Antarctica New Zealand welcomed the vessel in Maori style. (Xinhua/Su Liang)

Local people welcomes the Chinese icebreaker Xue Long with Maori dance in Christchurch, New Zealand, Jan. 17, 2015. Chinese icebreaker and polar research vessel Xue Long arrived at Lyttelton Port in Christchurch on Friday. The Christchurch City Council and Antarctica New Zealand welcomed the vessel in Maori style. (Xinhua/Su Liang)

Chief Executive of Antarctica New Zealand Peter Beggs (R) presents gifts to the Chinese icebreaker Xue Long in Christchurch, New Zealand, Jan. 17, 2015. Chinese icebreaker and polar research vessel Xue Long arrived at Lyttelton Port in Christchurch on Friday. The Christchurch City Council and Antarctica New Zealand welcomed the vessel in Maori style. (Xinhua/Su Liang)