Here's how I describe the spring water at HA HA Tonka. When you swim down from the fence on the right pic to where the the spring meets the lake is probably 20-25'. Once you set foot in the water by the fence it's instantly cold, this is when you question what you have done to yourself so from there it's either crawl out(the same way you got there, which isn't fun or easy, a little mound of dirt(10') that is slippery with rocks and roots in it) or swim down the stream. Swimming is the easiest way. Now that you have decided to swim the short 20-25' this is the fun part. You lunge into the water and fully submerge yourself in the cold water and start swimming faster than Michael Phelps, somewhere along the way you start to lose feeling in your toes and than the torture is over once you enter the cove water you regain feeling in your toes and the rest is history. Some people keep doing it. Kids love it. Now I probably just ruined it for everyone that wants to try it. Oops.