Apparently my girlfriend, a newly minted yoga teacher, encountered a supposition that in the time before biblical mention, Jesus travelled and perhaps learned from wizened teachers outside of his native culture.
I'm only interested in whether there is mention or implication; I don't expect consensus :)
No, there's no mention or implication that Jesus ever travelled beyond Galilee and Judea.
There's no historical support that I've ever seen, but Osho for one claims Jesus went to Kashmir (his support is mostly the French historian Bernier's observation that Kashmiris looked Jewish afaik)
Historically speaking (no offense to the religious side) there is even no evidence that he ever existed as a historical figure. Personally I think he may have but this is a personal opinion, no historical support for it, no archaeological evidence etc.