On July 22, 2011, Norwegian right-wing terrorist Anders Behring Breivik boarded a ferry to the idyllic island of Utoya, just an hour outside Oslo, and hunted down 69 people - mostly children - with a Glock pistol and Ruger rifle. Earlier that afternoon, he had detonated a car bomb at the Labour-led government headquarters in Oslo, killing eight.

Eskil Pedersen, then Labour Party Youth leader, vowed the day after the attacks that its members would return to Utoya.

Breivik took a ferry to reach Utoya

Four years later, Håkon Knudsen will be one of the hundreds of Labour Party Youth members making the journey back. He was in the cafeteria building that day when he first heard shots and saw what looked like a Norwegian police officer. But it wasn't until he saw Breivik shoot a fellow camper in cold blood that he understood it was not a drill. He threw himself into the sea just as Breivik opened fire on several dozen campers trapped by the shore.

"For me Utoya is both happy stories and also my worst memories," Knudsen said in an interview with DW. "I am excited about being able to [go back]. It was not a certainty that we would return to Utoya in 2011. It's been a long journey."

Long road back

Some of the island's cabins have since been rebuilt, a new hall has been resurrected and a memorial steel ring bearing the victims' names has been hung high in the woods. Other buildings, such as the main cafeteria, have been purposely preserved with Breivik's bullet holes still pierced into the walls in order to teach about "racism and the need to stand up for democracy," said Jørgen Frydnes, Utoya project manager, during a press conference on the island.

Bullet holes in buildings still offer a stark reminder

But there has been initial resistance to resuming camp at Utoya in the years following the attack, both by those who were there that day and family members who lost loved ones. In the past two years, the camp has been held at Gulsrud - an onshore site across from Utoya - with police present. This year's camp will therefore mark a watershed moment for the country in healing from Norway's worst peacetime tragedy and moving forward.

"The general mood is quite optimistic, yet special," said Knudsen. "There are a lot of campers going back knowing how important the camp is not just for our organization, but for our country…I believe it is a big step. It's like a culmination of the last four years of how we can take our everyday life and political life back."

Watch video 05:04 Share Norway: Youth camp after the massacre Send Facebook google+ Whatsapp Tumblr linkedin stumble Digg reddit Newsvine Permalink https://p.dw.com/p/1G79Z The long road back for Utoya

This year's camp will also be historic for its expected record turnout. Around 1,000 Labour Party Youth are registered to attend the three-day summer camp, nearly twice the attendance of that fateful July day in 2011.

The difference this time is that most of the youth registered for this year's event were not on the island with Breivik. Pedersen said approximately 70 percent of those attending this year's camp will be new members. That is also part of the reason why there was a keen interest in getting back to the island "before they got too old" to attend.

Painful years

"It's been four hectic, painful years, but I think this shows some of the resolve in the people after July 22," said Pedersen in an interview with DW in Oslo. "That just days after, we went to the streets with flowers and said 'We don't want the gunman to define our country.' And so even though this is painful, life goes on, and it has to."

Pedersen is one of several special guests expected to visit Utoya camp this weekend, including two former Norwegian Labour prime ministers, Jens Stoltenberg, currently NATO Secretary-General, and Gro Harlem Brundtland. Both were the failed targets of Breivik's attacks that day. The self-proclaimed militant nationalist blamed the Labour Party for promoting the "Islamic colonization" of Norway through its "pro-multicultural" policies and had initially even planned to publicly behead Brundtland on the island.

Labour Youth leader Hussaini said that it's now time for Utoya to move on

Mani Hussaini, Pedersen's successor as Labor Party Youth leader, has called on this year's gathering to focus on international solidarity. In a letter to members, he stressed the importance of gathering to remember those lost, promoting the ideals that came under attack on July 22, to show the perpetrator that he did not tear down the society they had built up together.

"Utoya is the heart of the Labour Youth and the island has a long, bright history," Hussaini said at a press conference on the island on Wednesday. "Utoya is also the site of the darkest day during peacetime here in Norway. The restoration of Utoya is about not allowing a dark story overshadow the bright history.

"We have rebuilt Utoya step-by-step, piece-by-piece since the terror attack in 2011. To once again be able to use Utoya as host for a summer camp is a major and important step toward the work in rebuilding Utoya."