Note: To make this tour more enjoyable, we decided to climb Carlit on a day trip from Lac des Bouillouses (our accommodation).
++Note++: The ascent of Carlit is only possible on days when there is no wind on the summit ridge.
The route to Carlit overlaps with the two lake tour routes. These are extremely well signposted (wooden signs with arrows and lake names).
Note: The two routes form a loop of nine lakes, which can be extended to include three additional lakes (12). One of the loops takes 3.5 hours and the other 5 hours.
(S/E) From the Chalet-refuge des Bouillouses, head towards the dam.
(1) Pass the Lac des Bouillouses dam.
(2) Take the path west, then north-west, to quickly reach the Estany del Viver.
(3) Continue left towards Estany Sec, passing between this lake and Estany de la Combassa. Continue northwest to reach the Estany de Vallell crossroads.
(4) Cross the footbridge and head west to reach a new crossroads of trails below Estany de Sobirans.
(5) Keep heading west, following vague blue markings, to reach a small pond at the foot of Carlit.
Note: this is the starting point for the ascent of Carlit.
(6) Turn back to the trail junction below Estany de Sobirans.
(5) Take the path on the left that joins the shelter between Estany de Trebens and Estany del Castellar.
(7) Cross the footbridge and continue south-east. Cross another footbridge and follow the Estany de les Dugues on your left, then further on, the Estany del Viver, and you will reach a fork you passed on the way up.
(3) Take the same route as on the way there to easily return to the lodge (S/E).