Bash the enemies' projectiles to reach #1 and #2.

1 - Energy Cell.
2 - Use Charge Flame.
3 - Push the rock to destroy the unstable surface below.
4 - Spirit Light Container, also a Secret Area #37.
5 - Ability Cell.
6 - Backtrack and follow the map to Mount Horu.
 

Let me explain here. There are 8 gates, each lead to a separate room where you have to go through different platforms. First, only the top 2 gates are opened, then can either go inside one of them first to stop the larva from flowing to unlock gates beneath.

Let's go all the way to top first.

7 - Bash the Rotten Beetle to destroy the wall.
8 - Enter gate #1.

9 - Spirit Light Container.
10 - Map Stone Fragment, also a Secret Area #38.
11 - Examine the stone.
12 - Energy Cell, also a Secret Area #39.

13 - Exit the room and head to #14.
14 - Enter Gate #2.

15 - Pull/push the switch, when the floating platform reach you, pull/push the switch again. Immediately jump on the platform and quickly use Charge Jump to reach the second platform.
16 - Use Stomp.
17 - Jump on the platform and pull/push the switch.
18 - Exit the room and head to #19.
19 - Activate Map Stone, also a Secret Area #40.
20 - Go to #20 and enter Gate #3.

In this room, you basically have to kill all Sentry Stones.

21 - Kill the first Sentry Stone in front of you to open the door.
22 - Kill all other Sentry Stones to open the top door.
23 - Use Stomp.
24 - Exit the room and head to #25.
25 - Enter Gate #4.

26 - Use Stomp.

Then run to the right before the laser and use Charge Jump, then double to reach #27.

27 - Push the rock until it reach the larva pit. Alternatively, you can Stomp near the rock, it will move faster.
28 - Exit the room and head to #29.
29 - Enter Gate #5.