How to clear Vanilla Secret 1 in Super Mario World for the Super Nintendo Entertainment System and Game Boy Advance.

How to Reach Vanilla Secret 1
To reach Vanilla Secret 1, go through the secret exit in Vanilla Dome 1.
How to Clear Vanilla Secret 1
If you go to the right, there is a green Koopa Paratroopa, and farther up and right, there is a red Koopa Troopa. To the right of that, there are three coins.
Go to the left from there, and get on the hills on the left to find two Prize Blocks. The Prize Block on the left contains a coin, and the Prize Block on the right contains a Cape Feather.
To the right of that, there is a red Koopa Paratroopa going left and right. On the right wall, there are Bouncing Boughs. If you jump on one, you can stand on the end that isn't attached to the wall and jump on it to bounce up. Do this to reach the ledge up above.
Jump up the hills to find a Prize Block at the top. It contains many coins. Hit it as quickly as possible to get as many coins as you can before it turns into a Brown Block.
Go to the right to find a red Koopa Troopa on a green horizontal pipe. Above that, there are three Blocks. Hit the middle Block to make a Beanstalk appear. Climb up it and you will find a red Koopa Paratroopa going left and right, and a Dragon Coin above it. Hit the Block to make another Beanstalk appear. Climb up.
Go to the left and jump over the gap. There are three Bouncing Boughs in the wall on the left. Fall to the bottom and get the Dragon Coin, then use the Bouncing Boughs to go back up.
Go to the right and jump up the hills in the middle, then jump onto the floating platform on the right and hit the three Prize Blocks. The one on the right contains a Cape Feather, and the others contain one coin each.
Go to the left and jump up the hills to find a Jumping Board. If you want to go to the Secret Exit, you need to have a Cape Feather, or you need to have visited the Blue Switch Palace. If you have a Cape Feather, go down to the base of the hills, then run from right to left, and fly up to the pipe in the upper-left corner. Go through it, then go to the right and watch out for the Passin' Chuck, then go through the Giant Gate. If you have been to the Blue Switch Palace, take the Jumping Board to the left and put it on top of the Blue Blocks, then bounce on it to reach the pipe.
If you don't have a Cape Feather and haven't been to the Blue Switch Palace, or you just want to go to the normal exit, go to the Jumping Board at the top of the hills in the middle if you aren't there already, and try to jump up through the hole in the ceiling when there is a gap in the red Koopa Paratroopas above.
At the top, go to the right and take the Jumping Board to the left, up the hills, and jump to the floating platform to the right of the pipe that is sticking out of the wall. Use the Jumping Board to jump straight up and get the Dragon Coin, then take the Jumping Board and make a running jump to the right, and use the Jumping Board to the right of the middle of this hill to jump straight up and get the Dragon Coin up above.
Then go back up the hills on the left, jump on the pipe, and use the Bouncing Boughs to reach the top. Go to the right and go through the pipe, then go to the right and watch out for the Passin' Chuck, then go through the Giant Gate.
After the Level
If you went through the Secret Exit, the path to the west will unlock, and you will find an entrance to Star Road that leads to Star World 2. If you went through the normal exit, the path to the north will unlock, and you can go through the pipe to reach Vanilla Secret 2.