Ihad a very interesting morning. This brief six-second clip shows why. I finally got some kind of a fix on what the ocean is doing magnetically. My magnetometer readout is on the left -- an ultrabright blue LED. Watch the LED closely as the waves gently lap on the shore. My readings will be very provisional, but I measured about 50 nanoteslas @ 2 metres from the sea, about 40 nanoteslas @ 12 metres. That represents moving magnetic fields. My magnetometer is completely immune to stationary magnetic fields. OBSERVATION: I find no similar experiment "out there". This might be a first. It reveals fairly strong magnetic fields at play in the ocean.