Referred to locally as the lake turning over the thermocline is a feature of lakes with deep water. The water on the top of the lake changes temperature much more variably during the year. On West Lake, it can reach as much as 75 degrees in July while the water below, greater than 35 or 40 feet deep is relatively stable around 45 degrees. In the fall and early winter, the top strata of the lake will cool to below 45 degrees, and then because it becomes denser, it will "sink" below the lower strata, thus, displacing it and making the lake "turn-over". In the deepest part of West Lake (near the 136ft mark), no light is availble, and hence little life is known whether fish or plant. Typically questions are raised as to why the surface water gets dirty for a short period of time in the fall, this this is the standard answer.

Emerald Hills Golf Course is one of the premier golf courses in the Iowa Great Lakes. Golfers throughout Okoboji will tell you that compared to the rest of the golf courses around, Emerald Hills is probably the most challenging. When I grew up as a kid, we lived just a half block from the back side of the course. We would sneak on with a couple short little clubs and balls we found walking the course and sometimes spent more time being chased by the sprinklers than trying to hit golf balls. Emerald Hills was owned by Gordy and Bette Benit many years ago and they can be credited with growing this course into the masterpiece it has become. Later purchased by Randy Rohlfsen and a few others, Emerald has flourished as one of the best courses around. If memory serves me right, Randy has been there since the early 1990's and has always had a strong conviction to help young golfers. He has taught and coached numerous high school teams, and they also put on a 5 day junior camp every year which has been a tremendous hit. I grew up on this course and can honestly say, you better be hitting the ball straight!

Having lived in Okoboji all my life, there are a wealth of memories of Arnolds Park. I, like many of the locals, miss the nostalgia of the old Roof Garden, the fun house, the water slide and much, much more. With time comes change, and the amusement park continues to reinvent itself. Currently with over 20 rides to choose from, the family is sure to have a good time. The main attraction, The Legend Roller Coaster, is the 7th oldest coaster in the United States and apparently the 13th oldest in the world. Reaching speeds of up to 50 mph, the roller coaster has undergone substantial renovations in the last year. In front of the amusement park on West Lake is the Queen II excursion boat, and Pirate Jacks Bar. The sunsets here are unparalleled. If you have a chance to visit, make sure to check out the tipsy house, the three sons, and all of the shops. Just to the east is the green space, which provides great entertainment and in 2013 OAR came to play, which is a pretty big name for Okoboji.