This location was pretty crowded just because it was such a nice day out and everyone was at the lake, so we had to park pretty far away. Once we got to the park and saw the water though, we realized that this is the puzzle they were talking about needing to bring a swimsuit for- but I was not about to walk back to the car just for a swimsuit, so I went kayaking in my regular clothes. (Ended up not being the best idea because we were using inflatable kayaks and there was a lot of water in them.)
This puzzle was really fun, we had to scout the buoy lined up in the water and find what numbers and colors each of them had. Once we got that, we put in the answer to the intern game site, and it told us to look under the buoys, so once we got that answer, the staff helping us with the kayaks gave us a magic stick which we then used to stab under the water (which had a magnet attached) and pick up a series of numbers from each of the white buoys.