What sunscreen would be good to use at a resort?

I am planning a summer vacation.

I think I'm going to Saipan, so the sun must be intense!

I hear that people going to Saipan buy a lot of Banana Boat sunscreen locally and apply it.

I heard that since it's 100%, the UV protection is 확실 (certain/definite).

But they say it's just as irritating to the skin.

They do have a kids' version, but I'm hesitant to apply it.

I also feel uneasy about just buying the 50-dollar version in Korea and applying it.

They say it's okay if you apply it every two hours, but I wonder if that will work lol

If anyone has tried this sunscreen, please let me know your review~

Or which sunscreen to apply and how.

Please recommend other sunscreens as well!