Wessex 2004
Wessex Archaeology established a monitoring system for the wreck. The 23 points were selected to be easily identifiable features that were in positions on the wreck that would allow changes to the structure and sediment levels to be monitored.
Wessex 2008
Wessex Archaeology returned to the Iona II and undertook diver and magnetometer surveys over the site, particularly in the area of debris to the north of the wreck where there had been reports of vessel super structure remains. Despite the magnetometer and metal detector search, nothing of substance was located.
Wessex 2012
Despite bad weather and mechanical failures, Wessex Archaeology managed to complete a photo and video survey of the southern part of the wreck using the monitoring points established in 2004.