Greece - St. Francis Folly
Tomb Raider Anniversary - Visual Walkthrough (part 4)
Now, in order to get to Poseidon's temple, you can use another trick which can save you of quite lots of work.
Just go to one of the pillars you collapsed and do a running jump a bit to the side. You should get directly at the entrance. Lara will take some damage, but she'l survive.
If you want to do it the normal way, you need to use the ledges on the bottom left side.
After you pass the entrance door, you'll get to a pool. Kill the rats waiting for you there.
Now it's time to do a bit of swimming. You should easily get to the real temple.
CHECKPOINT
Look a bit around and notice there are 3 levels. The key is on the third level. However, you can't reach it, so you'll need to use the room near it.
Admire the awesome water effects and then get ready for work.
First flip the switch in the water.
Next, climb to the top levels by using the crumbled statue.
Now pull the box and the water should rise up to the third level.
Swim again and flip the second switch and a wooden platform will be released. However, it is blocked by an arch.
Put the box in the original position, then repeat this for the box on the second level and in the end you should have the entire pool emptied.
Now get down to the bottom of the tank (make sure not to jump because you'll die).
Use the grapple to move the platform. You will need to put it in a very specific place, it's hard to explain where, check the picture. You need to make sure it is NOT under one of the arch above and close enough to the hole on the third level which you can't reach (near the room with the golden grates).
There are some rocks blocking the direct way, so you'll need to move it pretty much about 200 degrees.
Climb back up using the broken stone disc to the side.
Go to the second level, release the water to flood half the room.
Now do the same on the third level. If you did it right, your platform should be in the position you can see in this picture.
Jump on the platform and then to the room on the side.
Use the ledges to get to the hole on top of the grates and then into the room.
You've just found the second key: The Key of Poseidon.
Flip the switch to exit the door and swim back through the underwater tunnel you used to get here.
Take one last look at the awesome looking room and head back to the entrance.
And you're done with the second temple.