You are right when you say that many trads do not see swimming pools and beaches as a problem regarding modesty; and this attitude does not only exist among lay people, but among some of our priests.

The last time I went to Fatima, I had a conversation with a trad priest about the issue of swimming pools, and he answered something like this: "I have never thought about that, it does not seem to be a real problem; when you go to a swimming pool, you go to swim, not to remain outside the water. It is not the same thing as beaches".

This distinction is weird since people spend much time outside the water in swimming pools, and the purpose of many is to hit on each other, not to swim! I don't see how one can remain in a state of grace while being surrounded of naked men/women, some of whom are very attractive.

I asked the same priest whether it is a sin for a man to run bare chested, and he answered: "No, there is no problem with that. It is a custom for men to do that, or to work bare chested in villages. Men look at women, but women do not look at men. Men's body is not as much attractive."

When I was a pagan average Joe, I used to run bare chested, and I was muscled, with good proportions and a beautiful body; well, I can say that women looked at me... One day there were some teens walking in my village (they were at a wedding), and when they saw me down the street, they immediately chuckled without shame, because I was ripped. Therefore it is not true to claim that women do not look at men.

Some weeks ago I was talking with a priest who defended corridas, and I told him that the toreadors wore immodest and slinky clothes that unveiled their genitals. At that moment a girl said: "then what shoud we say about ballet dancers?". In other words, it was not obvious for her that it is a sin to dress like that, even for sports!

There is no way a man can see such a performance without comitting a mortal sin, or he is a castrato. It is simply impossible to see those sumptuous women in their diabolical attire without being strongly tempted.

If men shouldn't be bare chested to not tempt women, then what do you think of crucifixes? 

It's one thing to go to a beach where there are few if any people, it is another to go to a beach where I know it is full of people. A pool party is like going to a beach that I know is full of people.

These suits are lovely and suitably modest but would stand out as objects drawing attention on any European beach.