This CEFAS marine geophysical survey took place in February/March 2006 in the Eastern English Channel aboard the RV CEFAS Endeavour. This survey was undertaken for the Eastern English Channel Marine Habitat Map study (EECMHM) as part of a series of four surveys. The EECMHM study was funded by the Marine Environment Protection Fund (MEPF) a marine component of the Aggregate Levy Sustainability Fund (MALSF). The purpose of this survey was to infill between lines completed during a previous survey in 2005. Sea floor data were collected using an EM3000 multibeam bathymetry system. Backscatter data were collected using sidescan sonar system. These data are archived with the MEDIN Data Archive Centres (DACs), including the BGS DAC for geology and geophysics and multibeam bathymetry data are available from the UKHO Bathy DAC, https://www.gov.uk/guidance/inspire-portal-and-medin-bathymetry-data-archive-centre. Where Hardcopy records exist these have been archived by CEFAS. Cruise summary report available: https://www.bodc.ac.uk/resources/inventories/cruise_inventory/reports/endeavour6_06.pdf. For further information on the surveys and general information on the EECMHM see the final report (James et al, 2007. Cefas Science Series Technical Report No. 139).