Fit, sport oriented and wonderful if you have also undertaken serious squad training sometime during your life and therefore understand the discipline and approach required to succeed in a sport. Those skills really translate into achieving in other areas of life.
As I sail often, it would be difficult / impractical in the longer term not to share and enjoy this sport with my partner. I'm also willing to develop other sports too and am a keen skier (would love to share this fun with my partner). If your lifestyle allows you to accompany me on the more interesting/exotic business trips that's a real plus for us.
That said, someone to share the countryside and/or sunrises and sunsets afloat in a contented way and able to enjoy the inevitably more mundane aspects of life too, is necessary in any long term relationship.