Gap Years: Can you take them after being admitted?

<p>I'm a 16 year old junior right now, and in a couple of years I'll be turning 18 shortly after college starts (in early October.) Is it worth it to take a gap year to round out my CV by volunteering and interning/studying at a CC, and perhaps traveling internationally, and more importantly can I do it without jeopardizing my potential acceptances for the class of 2015?</p>