I lost my knife in the ocean and I am looking for another. I don't know much about knives so I was hoping you could help me, /out/.

I would like it to be fixed blade with no serrated edge and under $100 if possible. Budget is flexible. Something I can use to smack around into rocks or take camping to make feathersticks and fillet fish and won't rust or corrode too easily. Something that can handle salt water would be ideal.

Any ideas?