Pretty much yeah. It seems weird to put “welcome to the indian Jungle! (…)” in the script as that is speaking language. and the bit about it being dangerous doesn’t help either as it’s not something you can see so you have to make it clear. In a script I think you would just open with
EXT. INDIAN JUNGLE. DAY
Ominous animal noises sound from the shadowy foliage of this jungle, giving it a dangerous feeling. ALEX is seated on an INDIAN ELEPHANT as he looks around nervously.
Now there is no way to see that the elephant is lent from a local villager and it doesn’t really matter. But if it does matter and that fact plays an important role later in the script then you’ll have to make that clear. You can’t just tell something in the script and expect everyone to know this as fact. You have to write for an audience, so all information you have to convey they either have to see or hear.
In this example you could have ALEX say something to the elephant along the lines of “Easy girl, I don’t feel comfortable here either. stay calm and we’ll get you back to your owner safely.”
This has the added bonus of adding to the feeling of danger.