Essentials

I'm trying to mend fences with my neighbors... I use what always worked in the past: the old family recipe for mojito!
The problem is, I need young cactus juice for it... As far as I know, they can be found behind the oasis, in the sands near the river in the northern part of the desert. I'm too scared to go there... But you're brave enough!
Can you help me out? I'll put in a good word for you!

So how is it going?

Oh, it's just what I need! I won't forget this!