Translatation Flags OR Targetted Language forum sections?


Well-known member
Wondering what would be best and perhaps better for more SEO?

My forum is mainly English but we do have a lot of visitors who speak Spanish, so I was thinking of adding a specific section just for ones who speak Spanish. Perhaps this may bring in more visitors?

Or would it be best to just add language flags and people can translate the entire site if needed instead?

Whats better or other options to consider?