Well, it really depends of what you have...
14-24, 24-70, 70-200 w or wo TC (from my experience only the TC14 is worth with this lens) is perfect, it's the most versatile, but weight a lot...
I wouldn't go with slower zooms as they tend to need higher ISO, loosing OOF quality.
You also can go with primes, namely the latest f1.8 collection plus the 70-200, with less versatility but lighter...
Whatever you choose think also about the correct bag or vest. For these type of trips, and with such a combo, I lean to vests instead of bags.
Long gone are the years when we did everything with 1~2 lenses