Wonderful eco-friendly program on Camino to help preserve the Camino in Asturias. Look for albergues with brightly colored tall boxes for recycling. Pick up an Ecoperegrino credential and yellow geocery bag, have it stamped at three locations participating in this program (it's a different stamp than what's used for compostela, round and the same everywhere). Then post on Instagram and they will plant a tree in Asturias. Repeat.