Rainbow Springs State Park is great for picnicing and swimming! They have great facilities with great views of the Blue Run river from the grounds. Swimming area is roped off and I do not think they have life guards. If you have grandkids on the smaller side, make sure to have floats, floatie cuffs or life vests for them. Also, the water maintains at 72 degrees, so it can be a bit shocking until your body adjusts! If you're interested in tubing or canoeing travel down from the State Park to an area called K-Pole Hole. There, you can rent canoes or tubes! Or you can put in with your own. There also is an outfit in Dunnellon as you arrive in town on Hwy 484, I think it's still called Dragon Water Sports. The rent float devices and offer transport to the spot for you to enter the river and pick you up at the exit area. Depending on where you get in the river and on the current, the time frame for your trip can be up to 4 hours! Use to live in RS and made the trip many times! It's comfortable, especially of hot days, beautiful sights along the way and just plain fun! Enjoy!!