(Nerminator, you'd be surprised what Half-Bloods can survive lol, and especially when you 'assume' it was at high speeds, man half-bloods sometimes take the 'chariot of damnation' which goes so fast it almost hits the speed of light... and they get out just fine after that.)

The Naiads would regroup themselves, then started to help anyone left into the water get out, mainly because they didn't always like people in their lake, they some times had fun messing with people, and playing, as well as teaching them basket weaving, but didn't always like them swimming especially the way they went in.