Winehouse died aged 27 in July 2011 from alcohol poisoning. She had previously struggled with drug addiction for many years and had spent time in rehab.
Early reports revealed that she was entering rehab for alcohol and drug addiction, but her new management denied the claims, stating it was due to severe exhaustion.
Ralston says beyond recuperation, he's looking forward to getting "back to Aspen, to doing what I love doing up there. Returning to work, and getting back outdoors."
There were fears that Bradt, who holds the record for kayaking down the highest waterfall at 180ft, would never walk again but he is now making a full recovery.