Information through this site indicated that an Olympus P020 housing would fit an Olympus C7070.  Adorama had these housings on sale for $69, so I puchased one before flying to Hawaii.  Well, the housing sort of fits but not quite; the on-off switch does not line up.  I solved this problem by epoxy gluing a short section of #10 brass screw to the camera switch so that the camera may be turned on in the housing.  The fix took about ten minutes and worked fine for my several snorkeling adventures.  However, the information indicating that the housing would fit is misleading.  Not so misleading that I would return it and buy the correct P027 housing for $190 or so rather than $69, but misleading.