Wow! The last pic is mezmorizing. :)
I was wondering about the sign. Why hukkumisvaara? Is it because there is water and if you don't know how to swim you might drown? Duh. Or because there are strong currents because of the power-plant? There should be an explanation in the sign. Always. Everywhere. Because of people like me. Who always want to know why.
I'm not sure but I think there is a strong current which will suck you under water