Absolutely! Did I read here that Esme I think was worried about the weed in the lake? It doesn't take much for a child to panic and drown if some of that wraps around your leg - no matter how good a swimmer they think they are.I used to live next to a loch a nd to watch them kids on the loch made me feel sick . Fishermen drowned where I was their are under currents bleeping idiots. They need reporting to social services .