Hi and welcome!

There are several stock photography sites out there but most of them are very expensive. For example, there is photos.com that has tons of pictures and I'm sure would have what you need but there prices are VERY high.

Most of the free picture sites only have clipart and cartoons, not real photos like it sounds like you need.

Unfortunately using your own photos is probably best. Have you tried doing a search for something like "free stock fishing photos" in Google or something like that?

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