The festival from 19 July–13 August planned to celebrate the Olympics with big screens, live music, a campsite and a VIP village for corporate entertainment.
The festival's website lists only four events that took place during the period.
The Beach London, is still incomplete. On 26 July Peninsula Festival tweeted: "Beach development will resume after the Olympics. Regulations have left us unable to continue now."
The site did not open for planned events on 25 July. Organisers released a statement saying: "We are not able to open our terrain on 25 July. Due to circumstances beyond our control, we have been forced to postpone our schedule."
Frank Dekker, one of Peninsula Festival's two directors, resigned on 1 August.
The on 4 August as part of the Peninsula Festival, but all subsequent events were cancelled, except for a celebration of Jamaica's 50th year of independence, I Love Jamaica Day on 12 August.
Peninsula's organisers released a statement saying: "Unfortunately for our other planned events, a number of circumstances have not allowed us to deliver the experience that we have promised to many. In light of these developments, the terrain will only be opened for two more days: the 11th and 12th of August."
The Forgotten Festival planned for 11 August never happened. Its organiser Last Minute Artists Collective said: "Due to forces beyond our control, the festival site can no longer be opened to the public on Saturday. As a result, The Forgotten Festival has to be called off."
The Peninsula Festival Organisers did not respond to Event's requests for comment this morning. A local newspaper reports low turnout and ticket sales may have been a factor in the cancellations.
Do you know what happened to the festival? Comment below and let us know.
For more in-depth and print-only features, showcases and interviews with world-leading brands, don't miss the next issue of Event magazine by