When driving on road Fv40 take the turn in Åkra to the north. An unnamed road lead along the river Åkra. 2,5 km further on the Hagabekken falls into the river Åkra. Here should be a waterfall named Leiteshaugfossen. I can’t verify this information, but I read in it an brochure.
Unfortunately I see some reports, out of 2011, speaking of a power plant in the river Åkraelva. So I don’t know if this waterfall still exists.