One of the victims of the Kaikōura boat tragedy is being remembered as a "warm, community-minded woman".
Members of the Nature Photography Society of New Zealand were onboard a chartered vessel in Goose Bay, near Kaikōura when it overturned killing five people on Saturday.
Eleven people were on board the boat when it flipped. Initial reports suggested the boat hit a whale but police have been unable to confirm that.
Susan Cade was one of the five people who died in the accident. Former Wellington mayor Celia Wade-Brown posted about Cade's death in the Wellington Sea Kayak Network group. Wade-Brown, who is co-chairperson of the group, said she was "very sad" to pass on the news.
"Susan Cade was one of the five who drowned on the Kaikōura photography boat trip," Wade-Brown said.
"A warm, community-minded woman, a kayaker, dancer, photographer and no doubt much more. Our sympathies and condolences to all her family, colleagues and friends."
Fellow kayak enthusiasts also paid tribute to Cade with one person describing her as "generous" and a "true adventurer".
Another said she will be "keenly missed" and mentioned her love of gardening.
Earlier on Monday, the husband of another victim said he felt like he had "been run over by a truck" when he heard the news.
Peter Simpson's wife Cathye Haddock was also killed when the boat flipped. Simpson told AM thankfully he's been surrounded by friends and family since she died.
"I feel like I've been run over by a truck but there are lots of people around, family, Cathye's family, my family, lots and lots of friends," he said.
"Her house has been a bit like the central railway station at times. But there are lots of people there, lots of support, help and assistance."
Simpson said Cathye had only recently joined the photographer society. He said he found out she was dead while on a motorcycle trip with a friend.
"I found out later in the afternoon when I turned on my phone after having gotten off the motorcycle," he told AM.
"That's when I put two and two together, when I saw the news report that something was wrong. So I made efforts to contact the police and was able to get more information that way."
He described Cathye as a "people person" who loved the outdoors and always managed to make time for people.
"I could accuse her of having too many friends if there is such a thing to have. She just had time for everybody and managed to fit everybody into her world. I just don't know how she did it."
Simpson said he's seen the speculation about what caused the crash but he himself doesn't know yet.
"I don't know what happened. I have had regular contact from the police and I am just helping where I can but the investigations are just underway and I'm going to let that take its course.
"I think at the end of that when there's a report on what happened, then that'll be the time and I'm sure there'll be questions. I certainly got questions in my mind, but I'm quite happy to let the process work its way through and we'll take it from there."
The Transport Accident Investigation Commission (TAIC) has asked for any witnesses to the incident to come forward.
"The Chief Investigator, Naveen Kozhuppakalam, wants to hear from anyone who saw or recorded what happened - before, during or after the incident," a spokesperson said on Sunday.
"The Commission investigation will run alongside investigations from other agencies. Two investigators are assigned to secure evidence, talk to witnesses, examine any electronic evidence available and look at the circumstances of the incident."
The best way to share information is to email TAIC at info@taic.org.nz.
