After the quest to find Arezu, you need to get to Brava Arena. The road there is full of intertwined roads. So how do you get there?
Brava Arena Location | Pokemon Legends: Arceus
Brava Arena is located due north in Crimson Mirelands.
First, get off the hill and pass by the area of the Onix, then turn left on the second path. Here you will encounter a path uphill. Just follow this path and go straight.
At the end of this path, you will reach the Diamond Settlement. Exit the Diamond Settlement and continue through the wooded area of Cloudpool Ridge.
Then on your right, you will see the stairs leading to the Brava Arena.
Basically, the road to here is quite easy as long as you use the marker on your map as guide. Do this and you will not have a problem finding Brava Arena.
Watch out for Pokémon that you must avoid along the way so that they do not attack you.