If your trip to Okoboji is all booked but your travel itinerary is a little on the empty side, let us give you a few hints and tips.Close to the city center, ‘Boji Splash Indoor Waterpark Okoboji is one attraction you might like to add to your to-do list. If you still have space on that travel schedule, Emerald Hills Golf Course and East Okoboji Lake will keep you occupied as well.