With armed police on site, the Al Noor Mosque, where more than 40 of the worshippers were killed by an Australian white supremacist, reopened on Saturday.
The building had closed so police could investigate the attack but small groups were allowed to return.
Fifty people were killed in terror attack at two mosques on 15 March.
As the Al Noor Mosque reopened, some 3,000 people walked through Christchurch on Saturday for a 'march for love' intended to honour victims.
Jordanian Prince El Hassan bin Talal, said: "I cannot tell you all how close I feel to you in this time. I have lived in a part of the world where every 10 years we have seen a war, every 10 years we have seen refugees, and to feel that this form of violence and cruelty is visited on you, living in this idyllic part of the world, is deeply moving.
Muhammad Izeez, an Auckland resıdent, said: "So that was very emotional. But yeah, we're just feeling so blessed. But inside, like making duasand stuff, just tears with everyone present there this morning, like everyone were in tears in dua, while they were making their dua."
Many walked in silence and some carried placards calling for peace and opposing racism.
Zabair Khan, 25-year old accountant, said: "No, not at all, no, I don't think it's - especially the response we've got from the whole community around New Zealand, I think it's made us stronger. It's made us come together.
