Wednesday, Sept. 6, 2006 | Last weekend when I visited the Casa/Children’s Beach in La Jolla, I was dismayed to see people on the beach and children swimming. Don’t the parents realize the health danger? Aside from disturbing the seal colony, children are swimming in water that has rip currents and which contains seal-bacteria. Shouldn’t there be large signs telling parents this? There are many safer beaches in La Jolla, including the adjacent Shell Beach and, of course, La Jolla Shores.