Make your way to the place where the wind blows. Climb to the second level of that area and and get close to the wall and move the angel over. You will see an area with a lot of plants. Walk through the wall into this area and blow up the plants. You will find lots of dimonds and power-ups. To find the other secret, destroy the ice covering the sign and read it. It will warn of avalances. You have to cause an avalance to get here. So go to the top of the hill [the one on the left when you start] and place a bomb at the very top. When it explodes, you'll have to run!!! Run to avoid the falling snow. When it clears up, run to the top and then go fall onto the platform with the snowman on it. Run to the wall and rub on it until you find a passage. On easy mode there's a powerup, and on the hard mode there's a custom piece.