Our San Diego trip included a day-and-a-half visit to Legoland. We went there last year for their birthdays, and the kids were quite excited to go again, with a strong interest in their water park setup, which was ideal in the 80-degree weather. I have to say that I've never seen a water park setup as well designed as this. Most water parks seem to have water slides, and areas with water spraying out of the ground or from surrounding pipes, but these guys have raised the bar well beyond reach of my [admittedly limited] knowledge of any others. They've erected a massive pirate ship, with textured rubberized flooring on all surfaces. There's water spraying from all sorts of places. There's water gun "Cannons". There's a couple of short slides, and there are steps, rope-stairs and winding walkways all over, encompassing the structure. On top of the ship sit two massive "buckets" that continuously fill with water until they reach a tipping point.... and then they tip. The flood of water is immense and engulfs the ship and all occupants every 5 minutes or so. (Click the image to see a larger example I found on somebody's flicker page.)
On day one, I ventured up a few steps in my street shorts and shirt, staying relatively dry, to accompany my daughter to a higher point, forgetting about the second of the two buckets. As I was unexpectedly enveloped in a steady stream of cascading water, I watched my wife, my brother-in-law (who surprised us by showing up unexpectedly), and a cluster of sheltered adults all laughing at the situation. They laughed, my daughter laughed uncontrollably, and I laughed too. The next day, I returned with more appropriate attire and a change of clothes, and joined them as we scrambled about for a good chunk of the day.