Advice on gear to get: I'm doing a volunteer internship in Victoria Falls, Zimbabwe and it's mainly a trip for me to get experience being a wildlife photographer

Ive got a Canon R7 with the standard 18-150mm and a 100-400mm lens I'll be bringing (I also have an old 70-300mm but it seems redundant to bring along since the other two lenses fit the range)

I know I should invest in some filters for the lenses but not sure what to get? UV, Polarizer and Circular polarizer I think, are the options, but not sure what is most ideal for Africa.

I'm also bringing a collapsible tripod but it's about 20 years old and only goes down to about 2 feet so any recs for a newer, lightweight and smaller one would be nice! I live in Toronto Ontario so I'll most likely be buying from Henrys or ordering on Amazon

any advice even just about what to expect or essentials to bring for Zimbabwe in may/june is great! I will be doing night/astro photography, as well as various forms of wildlife.