Any idea where should i go to to repair my cassette (use in camcorder) tape which might be corrode by seawater?

HELP! The video I had recorded in my Cassette Tape is very very important to me is there any idea where can I go to seek professional help to retrieve the images.

Sorry Pink, sea water and magnetic tapes won’t go together. A magnetic tape is coated with ferric oxide and sea water will spoil this coating almost instantly, if you washed it immediately with clean water it would have helped a little.

FJ Vintage Audio – Yamaha kx800 professional 3head cassette deck 1987