Challenge yourself physically with sessions outdoors.

Add zest to your fitness routine by alternating indoor with outdoor exercise.   Be creative.  Utilise heavy logs, bricks, steps, bars, tyres, benches, hills, or sand to provide a stimulus that will help achieve your goals whilst enjoying the beauty of nature.  

Practice barefoot training on grass

Try doing a bleep test

Do yoga in the forest

Work on strengths that you wouldn't do indoors