If you are downloading via torrent, always ensure you are using a reputable site and have an active antivirus, as "niche" audio torrents can sometimes be used as masks for unwanted software.
Sites like Freesound.org host thousands of field recordings of the ocean uploaded by sound engineers.
If you are trying to find these sounds, you don't necessarily need a torrent. There are many high-quality, free, and legal ways to get "sounds of the sea":
This is typically a search query used by someone looking for high-quality audio recordings—such as waves crashing, seagulls, or underwater ambience—usually for relaxation, meditation, or sound design. The "Story" Behind the Search