Hi Ken, this boat is run by four local retired fisherman. The local community does not fund it. I see it says daily services. My guess is that day the boat captians have a day off. if you can’t book it, it’s best to presume it’s not available.

They have removed the number from the website but my suggestion would be to phone the hotel in Nusfjord +47 91661330 http://www.kremmervikahavn.no/en/
They should know when it’s operating.

Ps: Cycling through the tunnel is not as bad as it seems. There is a walking path through it with a rail but it’s 1776m long with a climb out.