From Rifugio Carlettini, follow trail L31 to Lago Nassere, then continue on trail 360 to reach Rifugio Caldenave.
Shortcut option: From Malga Nassere, you can take trail L37 directly to Rifugio Caldenave (approx. 1 hour and 45 minutes).
Return to Rifugio Carlettini via trail 332 (approx. 1 hour).