Each section has a varying number of rows and seats per row. If you already have tickets, find your seats for row and seat numbers.
As you face the field from your seats, lower number seats are on your right.
To guarantee yourself shade at Marlins Park for a day game, first consider seats on the first base side of the field. Specifically, aim for seats in the higher rows of sections 6-11 and 206-211. These seats provide the best combination of shade and great views.