I think i said it last time the tourism question was asked but ill say again:
While the spheres may be closed off in a lot of ways to one another, i still think they wpuld allow tourists to arrive, if only for a select few locations, like foreigner specific resorts. (The empire id wager has entire carribean islands dedicated to either european or japanese tourists, the rest for Entente tourists).
Japan as closed off as it wants to be could still accept tourists and treat them well.
Heck, even Amerosul may capitalize on various tours to Machu Pichu, the jungles, the beaches as an additional source of revenue at some point.
Remember that at this point of history, most of tourism is based on all-inclusive resorts/hotels, orginized tours by companies/government offices and everything else orchestrated by the nigh extinct Tourism Agencies.
Otherwise its backpacking tours to the various 3rd world countries for drugs and parties, hippy opium trails and mountain trekking.
In CA the targets of this type would be Turkestan, Nusantra, Japanese imperial peripheries and so on.
When you put it like that who needs alternate history.
