i'd have to say the most memorable obstacle was the poo/algea filled lake in the middle of the 5k. it was hot and it felt wonderful. i have no sense of smell, so i had no idea what i was getting into. everyone else said it smelled awful.

the mud and fire at the end was a good time as well, but i really enjoyed all of it. the hills were killer, but i felt very accomplished since the heat and twisted ankles took out more than one runner.

btw, i always run with a bottle of water. i even decided to buy myself a belt that i can wear that holds a 20 oz bottle of water. i hydrate before, during and after my runs. i love the h20.