TRENT'S VINEYARD: Couples can marry inside or outside at the Prebbleton venue.

TRENTS: The venue near Prebbleton is popular for weddings.

WEDDING CAR: Two flower girls enjoy the ride in a spacious Ford Falcon.

WEDDING CAR: A Ford Falcon with a personalised number plate will take bride Liz Davies to her wedding.

GROOM AND GUESTS: A woman and man travel with David Bain to the wedding.

EXCITED: Two flower girls are delighted to travel with the bride.

VEILED: Liz Davies is the picture of a bride in her white dress, tiara and veil.

PRIVATE VENUE: Guests are checked by security before being allowed into Trent's Vineyard.

A limo arrives with the bride, Liz Davies, who is marrying David Bain at Trent's Vineyard today.

BAIN WEDDING: An aerial photograph of David Bain and Liz Davies' wedding at Trents Vineyard near Christchurch.

David Bain has married Liz Davies in Christchurch this afternoon.

The ceremony was held outdoors, at Trents Vineyard, a wedding venue near Prebbleton.

Aerial footage showed guests seated on white chairs, with a red carpet laid as the aisle, in a clearing among trees.

TO MARRY: David Bain is expected to tie the knot in Christchurch today.

The bride arrived in a limousine at the venue about 3pm today. She had been seen leaving her parents home in another vehicle shortly before 2pm, about the time Bain arrived at the wedding venue.

Bain, 41, drove his own red Toyota Surf - with a horse shoe on the front - to the vineyard.

He was wearing a crisp white shirt, a light yellow tie and cufflinks and was accompanied by an unknown woman.

BRIDE TO BE: Liz Davies

Davies wore a white dress, with a train, and a tiara and full veil.

This morning, long-time supporter Joe Karam told Fairfax Media he was in Christchurch for today's ceremony.

"It's a lovely day - everybody is looking forward to it," Karam said.

He had spoken to Bain who was "excited" about this afternoon's ceremony.

"Like any normal groom there's a bit of knee bobbling. You get a bit nervous on the day."

Karam said he was neither the best man or a groomsman, but confirmed his two sons were part of the wedding party.

Bain and Davies, a primary school teacher at Bishopdale's Cotswold School, had turned down lucrative magazine deals, preferring to keep the occasion private.

"The women's magazines all contacted me wanting exclusive rights," Karam said.

"David and Liz turned down what would have been very substantial offers."

He confirmed they were in the range of $30,000 to $50,000.

The wedding was "quite a reasonable" size. He knew up to 40 people went, as well as all Davies' family and friends.

"It's a lovely occasion for David and all of his friends."

The former Dunedin student - acquitted of killing five members of his family - proposed to Davies in September 2012.

Details of today's ceremony were kept under wraps, with guests sworn to secrecy.

David Bain's uncle, Michael Bain was unaware of his nephew's pending nuptials when contacted by Fairfax this morning.

However, he agreed to publicly give his blessing to the union. ''I wish them all the best.''

Michael Bain, of Wellington, is the brother of David Bain's father, the late Robin Bain.

Bain was jailed for 13 years in 1995 after being convicted of killing his parents and three siblings in Dunedin. His supporters have always claimed it was his father who committed the crime.

Bain's conviction was quashed by the Privy Council in 2007 and a retrial in 2009 found him not guilty.

He has applied for compensation for wrongful imprisonment with estimates suggesting he could be in line for a $2 million payout if successful.