Stahl has been all over Galar due to his job as an exec! He hasn't visited other regions in decades and that was in his Roudy British Tourist phase with Arryn.

Arryn was the british tourist back in the day. After competing in her Champion Cup back in the day she visited tons of places and still does on her battle facility circuits/legendary hunting-- sorry "work retreats". Her favourites would be Castelia City and Undella Town in Unova, Saffron City in Kanto, Lumiose in Kalos... anywhere with bright golden beaches as a summer retreat or a sprawling metropolitan area.

Avian's been on holiday to places but only properly been to Sinnoh outside of Galar. Canalave was great for the library and Celestic town just kinda spoke to him.