The route was operated by Hardanger Sunnhordlandske Dampskipsselskap (HSD) and ran between Mosterhamn on Bømlo to Valevåg on the mainland.
[2] The original route to the mainland ran from Moster to Tjernagel.
On 22 July 1959, the route was moved from the port of Mosterhamn to a new quay further out.
[1] The last ferry to operate on the route was MF Tysnes, which had a capacity for 40 cars and 162 passengers.
The ferry was terminated on 30 April 2001 with the opening of the Triangle Link.