In the sims 2 castaway for the wii how do you cross the sinking sand river?

Do you mean the one in the East River Plains? Well, I don't have the Wii, but it might be the same for PSP, so... 1. unlock the Temple Exterior on the third island (Volcano Island) by crafting together the 10 hieroglyphic pieces and placing the finished procuct in the slot in the door at Volcano Overlook 2. travel to the Temple Interior and find the weird crown thing (I forget what it's called) and put it on by going to Fashion and Grooming in the menu and change your hairstyle so that your character is wearing it. 3. go to the Dark Cave on the second island (Airplane Island) and examine locked door by choosing "Inspect". You will have then unlocked a new section of the map called Hidden Lagoon. 4. walk across the Hidden Lagoon to find the entrance to east River Plains and walk through it. you will find yourself on the other side of the sand river. 5. push down the pillar on the left and it will fall across the sand river so you are able to cross over it. there will also be a map piece next to the base of the pillar after you push it over. remmeber to pick it up!! :-) PS. for the Wii, I've read that all of the hieroglyphics are... Shipwreck Island: 1 - Deep Jungle - On the ground where the path splits 2 - Shipwreck Cove- On the deck of the ship 3 - Pier Beach - By the stones where you build your workbench

Airplane Island: 4 - Dark Cave - On the ground next to the locked door 5 - Skull Rock Jungle - On the ground next to the "Skull Rock" 6 - East River Plains - In front of the quicksand 7 - South River Jungle - On the river bank by some stones on the edge of the sea to the left

Volcano Island: 8 - Volcano Jungle - Nearest the top hot spring. 9 - Geyser Plains - Just outside the hieroglyphics door that leads to the Volcano Summit