Yes, the two maps are different levels for the temple. The one on the left is the first floor and the one on the right is the second level. The players would be expected to tie up their boat to the partly submerged west balcony on the second level and can gain dry access to the first level through the crevace that has opened on the second level due to the shifting and sinking of the island. The maps line up on the stairwells and the central cathedral.