@casablanca It was the bikes that we had to watch for. There were signs everywhere that said walk your bikes but several rode by FAST!
@briaan I found this on line:
The cast-iron tunnel is 1,215 feet (370.2 m) long, 50 feet (15.2 m) deep and has an internal diameter of about 9 feet (2.74 m).
@briaan I found this on line:
The cast-iron tunnel is 1,215 feet (370.2 m) long, 50 feet (15.2 m) deep and has an internal diameter of about 9 feet (2.74 m).