Go for a Hike
Speaking of active vacations, try going camping for a weekend or take a day trip to a nearby park for a long hike. Just 30 minutes of hitting the trail can burn approximately 270 calories and target important muscles in your hamstrings and glutes.
Hiking is an excellent workout for both your mind and body, and it’s the perfect way to catch up with friends while getting back in touch with nature.
If you aren't a huge fan of the elements, look into running or biking trails in your nearby city. Dirt paths are easier on your joints, and it’s always great to spend time in the outdoors, clearing your head and exercising your body.
Hypertrophy is a scientific term for building muscle. And there are lots of ways to do it. HowStuffWorks talks to an expert who wrote the book on it.