Departure from the Col des Tentes car park.
(S/E) Head towards Port de Boucharo (tarmac road, closed to traffic). Immediately climb up the embankment on the right to take an unmarked trail (not shown on IGN maps) overlooking the Port de Boucharo road. Do not take the ridge as there are numerous rocky outcrops. Continue climbing gently for about 600 m, on the Lac des Espécières side. The trail disappears for a few dozen metres. At around 2250 m, when Lac des Espécières is clearly visible on the right, you will find a clearly visible trail (shown on the IGN map) leading to Col des Espécières.
At the first peak (trail of the Ruisseau de Holle), leave the path and climb towards the summit of Pic entre les Ports, across the grassy slopes, making as many zigzags as necessary.
(1) Reach the ridge of the peak's secondary summit and continue straight ahead, following the ridge to Pic entre les Ports (2,476 m).
(2) Enjoy the 360° view of the Plaine d'Espagne. There are dry stone walls forming a shelter for bivouacking.
Retrace your steps.
(1) At the fork, as soon as possible, turn left heading north-northwest to reach the clearly visible Col des Espécières (border cross).
(3) Take a tricky path on the right that descends steeply (east then north-east). Reach the northern shore of Lac des Espécières and follow it on your right.
(4) At the eastern end of the lake, continue straight ahead on a path (east-southeast then east). This will take you to the Col de Tentes (S/E).