"I am still missing one whole day of photos?"
If the old photos were deleted by mistake and new photos were stored in the same location on the SD card, you will not be able to recover them. I did a photography class for beginners a few years ago. Mostly moms with new cameras. The one thing I saw mostly was moms tend to use their new DSLR like they use their iphone. It is not an iphone so you must not think of it as one.
Like, my friend above said, they don't make good storage devices. They aren't intended to be. Very first thing for you to do is buy several new SD cards and keep them in the 16GB range. Change them out when you shoot photos. Don't put all your "events" photo on a single SD card. When you get back home, or wherever, u/l them to your laptop or computer. Format the SD card(s) for the next time.
EB
EOS 1DX and 1D Mk IV and less lenses then before!
, your handle suggests you are going to the beach. A lot? If that is so make sure you don't get the camera wet. A DSLR and water don't play well together. Now, if it is a sandy or saltwater beach really take care as saltwater can do extreme damage to a DSLR.
