I do all my work in LR on my iMac... once done and I export my final photo with my watermark, I want to be able to access them on my iPad so I can upload them to Instagram or Facebook. Is there a particular folder I can export them to so that I can access them via my iPad or iPhone later?
Upload your photos to your Adobe Creative Cloud folder, then you can access the folder via Creative Cloud App on the iPad.
Check my screenshots:
1- My Creative Cloud folder
2- Copy the files to syncronize.
3-Check via web brower (optional).
4- Creative Cloud App on the iPad, check the "share" bottom.