Head to Orbaizeta via the NA-2030 road, then turn right towards the Irati Forest. Pass the Mendilatz lodge and continue along this road to the dam. At the dam, there is a large car park just before a barrier blocking further access.
(S/E) Turn back until you reach the first road on the left.
(1) Take the hairpin bend to the left down to the dam and cross it.
(2) Take the first path on the left to walk along the lake shore.
(3) Cross the small bridge and continue northwards along the shore.
(4) At the house in the forest, head north-west then due north, ignoring the paths branching off to the right.
(5) Turn left and cross the bridge over the River Egurgi. Turn immediately left towards the south-west to continue along the lakeshore. The path is circular and returns to the starting point at the dam car park (S/E).