From Fresno or Yosemite Village, go towards Glacier Point and you will hit the Tunnel Outlook
Gorgeous views of entire yosemite valley from Tunnel Outlook vista point
Got up early and went to see sunrise at Glacier Point in Yosemite and on the way passed through the tunnel. There were no cars in either direction and the tunnel looked eerie. I parked the car, stood in the middle of the road and captured the moment.