The ceremony was supposed to be held at 13, but Märtha Louise did not arrive until an hour and a half later, Norwegian media reports.
The guests have arrived in great secrecy as the photo rights have been sold to British celebrity magazine Hello Magazine and its Spanish sister magazine Hola and the television rights to Netflix.
On Norwegian TV2, however, the princess was seen crouching under a white sheet meant to hide her from the photographers, wearing a white wedding dress and holding a large pink bouquet.
Perhaps the most talked about wedding of the year is held in scenic Geiranger in western Norway in front of 350 guests, among them Crown Princess Victoria and Prince Daniel.
The festivities have been going on since last Thursday, when a welcome party with a “sexy and cool” dress code was held in Ålesund.
On Friday evening, a big party was held at the Hotel Union in Geiranger, where the bride and groom treated the guests to a swinging salsa.
Although interest in the wedding has been high, it has not been covered or televised as royal weddings usually are due to rights reasons.
Photographers stand outside the Hotel Union in Geiranger to try to get a picture of the hidden participants.
Photographers stand outside the Hotel Union in Geiranger to try to get a picture of the hidden participants.
Photo: Heiko Junge/NTB/TT