Definitely. Especially if you are already visiting Patagonia, the Perito Moreno glacier is well worth a visit- even if it's hard to get to. I also wondered, during my month in Patagonia, if this destination was worth the six-hour bus ride from Puerto Natales, but when I finally arrived I got my first glimpse of the enormous glacier, I got it. I had the opportunity to spend the entire day watching icebergs actively calve off and plunge into the waters below. I was so glad I decided that Perito Moreno was worth it and added it to my itinerary.