Because we want to go full timing I believe exercise and fitness are part of the process.  Many of the most beautiful natural wonders are not right next to the road or beside the parking lot.  The Old Faithful geyser in Yellowstone National Park is impressive, however a hike down a nearby trail will lead to to a more spectacular geyser. 

I read about a 15 mile bike road that was created by removing rail road tracks from an abandoned line. Hiawatha Trail.  You will not do that trip if you are not in good physical condition. 

Here is a quote from the Hiawatha site:
“Winding through 10 tunnels and 7 high trestles, this 15-mile route crosses the rugged Bitterroot Mountains between Idaho and Montana. The Route of the Hiawatha is best known for the long, dark St. Paul Pass, or "Taft" Tunnel, which burrows for 1.66 miles under the Idaho/Montana state line.”

Full timing often means a retired person.  How many years of inactivity has the typical worker accumulated?  I know I have too many years of doing nothing strenuous.  How about you?  For me I have been trying to change that and get healthier.  Daily exercise, better diet and an attitude adjustment are what are helping me toward a healthier lifestyle. 

The average lifespan has increase over the years.  Base on just that, spending the extra time to make your retirement years better and healthier should be a reason to think about starting a fitness and health plan for the coming years.

If you are younger and nowhere near retirement, you have a huge advantage over us older folks.  You can prepare now and be fit for life.  The news talks about overweight children and overweight adults.  Take this as a wakeup call and use you camping passion as a reason to gain the physical strength, stamina and health you deserve.