The only way to access the area is using passenger ferry or by air.
However, a passenger ferry did remain in operation until the mid-1960s.
The high-speed passenger ferry takes about an hour and a half.
In the summer, a passenger ferry runs across the canal.
In 1994, both ferries were out of service and a small passenger ferry was used for a few days.
Formerly a passenger ferry, from 2006 used for freight services.
This is a small passenger ferry and is run in the summer months only.
There are also two summer only passenger ferries that cross the lake.
The passenger ferry had 518 passengers and crew members aboard.
As a passenger ferry, she could carry 2,300 passengers and 120 automobiles.