I've been living, working and hiking in Chile since 2015, and while there's no doubt that Torres del Paine is one of the crown jewels of South America, you'd be hard-pressed to call it a hidden gem. If you're looking for a Chile hiking experience without the blockbuster appeal (and crowds) I'd vote for the epic Pacific Coast Trek which has been developed by Amity Tours in the Mapu Lahual Indigenous Park network. This is a fabulous option for experienced hikers. You can hike along pristine coastal beaches and ancient Patagonian temperate rainforests and share in the ancestral knowledge from some of Chile’s most important indigenous communities.