Darkness and a slippery creek

In the morning I did a 15 min warm up on the trainer and then about 20 minutes of some power increasing exercises like squat and press with some dumbells. In the evening I did just over an hour on the mountain bike. It started getting do dark that I couldn't see and I was still pretty far from the house. We decided to take a short cut through a creek. It was moving pretty fast and the rocks were covered with slippery slime. I was able to keep from falling over but Slid most of the way down the rocks. Tomorrow, I am doing the 8 minute power yoga 4x through and about another hour or so on the bike.