I see the 5 hour tour is in a protected bay. Does the six hour tour go into rougher water? Thanks, from one who gets sea sick at times.

I'm not sure sorry but you can sit inside or the rear of the boat its not bad.. Great trip

It is not bad a lot depends on the weather that day, and as mentioned is just for a short period.

6 hour tour does feel a bit rough but mostly because boat is speeding up and going over waves to reach the glacier view. It's only for half an hour though. If you sit in the rear, it's not bad.