Vessels passing through the Panama Canal at Miraflores 

Few bits and pieces put together. My Canon camera was having battery issues (full battery showing as about to run out after a few minutes. Change to a new one and that would do the same thing after a few minutes. Put the first battery back in and that would now show as being fully charged for a few minutes before the camera powered down due to a low battery etc.)
Must have arrived around the same time as a bus load of tourists as they were everywhere, pushing and shoving.