Are you allowed to bring your own water bottles in?

They have to be non opened bottles. Water and side is $3 a bottle

Are reusable bottles permitted?

And they have to be plastic

Yes but they have to check it. Just don't bring in tons

What time joust start

Hello and yes! Everyone is permitted one, unopened, plastic water bottle. Water fountains are available inside at the two permanent restroom locations (food court, and on the path to the Joust).