Metrolink 664 enters Laguna Niguel with an ex-GO Transit F59PH leading the way. The crew was probably less thrilled than I was, the engineer reported water leaking inside the cab. The Orange Sub briefly has 3 tracks (plus a storage siding) on this stretch, and it's a busy piece of railroad. At the time, there were 63 passenger trains and up to 4 freights scheduled through here during the week, probably similar numbers today.