Neptune's Hall

Now the water! Notice that big hole? DON'T GO and drop down down or Lara will have a painful death! Avoid Mr. Flames and to the LITTLE hole. Swim to the lever and now go back to Mr. Hole drop down, pull another lever, go through one of the doorways, swim through the trapdoor, avoid spikes, surface for air at the right of the intersection, follow the left side, grab the crystal , pull another lever, surface, and swim through the exit to emerge near the beginning of the level, and exit and tadaa!