Rules/Lessons from the water park:

1) If you are a female and can be in any way referred to as attractive, you will get looked at/admired/leered at in the water park, no matter how demure your swimming costume. Even men who normally would be very respectful of a lady, or would at least try to be subtle about ‘checking out’ a female, will lose that restraint at a water park. There is too much flesh on display. It can’t be helped; it’s instinct.
2) Put on sunblock. Then put on more sunblock. If you are swimming all day, refresh the sunblock as the day goes on. Not doing this can lead to sunburn. It did for me at least.
3) If you are a female and are in any way could be referred to as attractive and choose to wear a two piece bathing suit, you will get looked at by men. Again, it’s a flesh thing; if you show that much of it, the eyes will come.
4) While I lack a strong level of physical fitness, I am not grotesquely overweight. If I stand up straight I can almost pass as merely pudgy as opposed to having a beer gut. I’m sure the sight of my pasty belly doesn’t draw the ladies but I don’t think it’s overly off-putting either. Men really only have the option of trunks. If the gut is big enough, wear a shirt. I saw many that took this option during my trip. Saves on the sunblock as well.
5) If you are a female that has reached a certain age or weight or … sagginess, do not wear a two piece bathing suit. You’ll still draw the eye but not in a good way. A mother and daughter wearing matching bikinis is a dangerous thing, especially if the daughter is of a legal age. It’s less cute at that point and more asking for trouble. Think first. Consider what people might think about your choice of outfit. If you decide you don’t care what people think, you cannot be offended when they think it. Or stare.
6) There is no rule 6!
7) If you decide to wear an itsy bitsy teenie weenie yellow polka-dot bikini, people should be allowed to sing at you.