How do you travel to TOMMA                               

If you go north on E6, you can drive in the direction to Sandnessjøen when you arrive Mosjøen.
In Leirosen (Leirfjord) you drive in the direction to Levang. When you get there you must take the ferry to Nesna and there you change ferry to Tomma. The distance from Mosjøen to Levang is ca 60 km.

If you go north on RV17 and arrives Sandnessjøen you must drive over the bridge "Helgelandsbrua" and straight to Levang to take the ferry to Nesna and then the ferry to Tomma.

If you continue from Mosjøen to Mo i Rana on E6, or arrives Mo i Rana from the north, follow teh sign to Nesna.
from Nesna you take the ferry to Tomma. The distance from Mo i Rana is ca 70km.

If you go south on RV17, follow the sign to Nesna when you arrive Utskarpen (Sjoneidet).

The ferry to Tomma leaves Nesna and returns 6-7 times a day.
you can løøk the ferry rute on this link: http://www.veolia-transport.no/rutetider-og-priser/category584.html