BTW, Ed.... I wish there were pics and vids of the bore before the causeway was built. Check out this pic.
Note the width of the river and compare that to the "green space" on either side of the river... that green space used to be river. At thr right time of year and the right time of the moon that bore could be three feet high. THAT was impressive. What you will see (saw at 5:41) at 6:09 is kind of embarassing to us who remember the real bore.