Area 1 Path 1: Two in the final room (right next to each other; throw a bomb in the middle of what looks like one big deposit), up the hill behind the tower.
Area 2 Path 1: Three. There are two in the chasm under the breakable bridge. (The Northern deposit is problematic. The slope of the ground usually causes the bomb to roll too far away from the deposit to be effective.) There is one in the final room to the right of the exit.
Area 2 Path 2: Two in the pit below the breakable bridge.