pictures would really help as I don't understand how you get the drag in the water and release it, unless this is in the shallows?

If you are using the box that shows just under your last post then you won't see any upload options. The grey buttons under this box say Switch to Full Reply Screen. Click that...

On that screen under the text box is "File Manager' and using that it will give you window to browse your computer and upload pictures as attachments.