I have used bullfrog on my extremely fair kids for many years. My eldest son can get a sunburn in front of a *picture* of the sun, LOL. Bullfrog is the only thing I have found that *really* lasts all day, does not get into their eyes if they are sweating or rubbing their eyes, crying, etc., and doesn't wimp out in the water.
A couple tips though: (1) It is a gel and it dries/soaks in fast. Apply to small areas at a time -- i.e. do not try to squirt a bunch on their back and spread it all around, unless you want to see the sunburned streaks where you missed later.
(2) The "childrens" formula smells much, much better than the original. No strong alcohol odor (although it does disappear quickly)
(3) Follow the directions on the bottle about briskly rubbing it in once again 5 minutes after application, it really makes a difference (actually I just noticed this isn't on my newest bottle, but it was on the previous one -- they've changed the layout of their label... anyway it does help)
About WaterBabies... EVERY time I have ever used it on one of my kids it has ended up in their eyes ... usually after they rub them after getting wet, crying, or whatever. I wont use it on their faces or lower arms/hands anymore.
April