From the village center of Grossarl, go cycle along the cycling path towards Hüttschlag. You turn to the Mandldorf after the Hotel Viehhauser. You follow the forestry road mostly through the forest to the Aigenalmen.
Here you have the choice between the Aigenalm-Paulhütte and the Aigenalm-Mandlhütte (of course, both huts are worth a visit). On both mountain huts you are pampered with delicacies from their own production.
After your break, you cycle back on the same route.