Fugro carried out the prime offshore site investigation programme for the 100 MW Erebus floating wind project for Blue Gem Wind in 2023. Scope spanned a UXO geophysical survey in West Angle Bay (Mar 2023, vessel Fugro Valkyrie), an offshore geotechnical campaign across the array area and export cable corridor (Apr–Jul 2023, vessels Voe Vanguard and Fugro Scout) acquiring cone penetration tests, vibrocores and rotary boreholes, and nearshore landfall geotech using the jack-up barge Aran 120 at West Angle Bay. The campaign delivered the sub-seabed dataset required for floating foundation anchor design, export cable routing and landfall engineering, and Blue Gem Wind announced its successful completion on 6 July 2023.