This is a trip for 17 of our undergrad art students and is one of several summer intensive programs offered for credit that run 3 weeks. We're going to travel to Cusco, Machu Picchu, Ariquipa, Lake Titticacca (and some other places I forget just now). It's my first time to Peru and my spanish is non-existent! But we have traveled to Turkey for the past number of years as well as Morocco, Spain and Portugal and I don't know those languages either! Typical American, right?
Over the course of those trips I've learned to par down the equipment, so my D700+24-70mm stays home. One year I brought my Canon F1 and Ftb-n w/a 35mm and 85mm, shot all b+w and loved it, but that kit got heavy after a while! Real brass and glass from way, way back. Now it's my Nikon S2 rangefinder and Fuji X-e1 with the 18mm+35mm that go and it's a good combo of old-world and the new.
What do you teach? I envy your Leica set-up!