Not quite a "bush" walk, but earlier this year we returned to Patagonia to venture up onto the southern Patagonian ice cap. The ice cap is the third largest continental ice cap after Antarctica and Greenland and is relatively accessible. We did the ice cap loop in autumn so there wasn't so much snow left on the ice making things more difficult in some places.
Day one is a pleasant, relatively flat walk out to near the end of Glacier Marconi. Day 2 is the most physically demanding day, although not necessarily the hardest depending on the weather. The ascent onto the ice cap is about 1000 up including some rock scrambling up the rocks that are now exposed in what used to be an ice ascent.
The first night on the ice cap we camped on a rock outcrop near the base of Cerro Gorra Blanca
Day two up on the ice cap was a late start walking after the guide sewed the guy line attachments back onto the tent after the wind had torn them off overnight. It was a perfect blue sky day walking along in snow shoes.
With more snow, we would probably have camped out on the ice cap, but instead we camped on the ice in the Circo de los Altares and had another perfect blue sky morning.
Next day the ice cap got a bit trickier to navigate without the snow, so it was back to crampons.
Instead of the short exit via Paso Viento, we chose to continue around to paso Huemul and were rewarded with 20 to 30 Condors roosting in the cliffs below us and a nice view over the front of Glacier Viedma.