Go near the back of Van's skate park, by the sign that reads "Caution stairs ahead bicyclists dismount". At the entrance to the staircase, dismount your bike or board and walk straight into the right or left door. Walk into the wall directly behind the left or right door. You should now be inside the wall and can walk out the way you came in or through the wall. Note: You cannot walk through the black parts. Some times if you try to walk into the black part it will "bounce" you away. When you try to walk into the black part, aim the bounce of your character at the wall. You will go out and become stuck in a walk mode. You cannot get back on your board.