Enjoy a change of pace from chopper rides and sheer-faced glaciers on a guided kayak trip on Lake Mapourika (10km north of Franz). The 'kayak classic' is three hours of bird-spotting and mountain views, plus a short bush walk. The summer-only 'sunset classic' ($125) is at the golden hour (no cameras, but guides snap pictures and share them for free).
One-hour 'discovery' tours are a good option for novices (adult/child $85/65). Guided stand-up paddle boarding on offer, too (from $85).