Cheapest and most efficient way to use data while abroad for 9 days? (Streaming music/googling stuff/using maps)

I’m on my parent’s plan through Verizon. We pay for unlimited data plan in the US. I’m going to Brazil for 9 days and see that I can get international access for $10/day. I’m wondering if that’s the best option for me and whether I can use my unlimited data feature since it says “use your plan”. I don’t really need it for calls or texts since I can do that via internet. I want it for streaming music and being able to look stuff up while out. I also use Life 360 so it would be nice to have that run during the day for loved ones back home.