Caltech supplement question!

<p>On the part that says:</p>

<p>"Summer Activities (volunteer work, research, camp, travel, personal projects, if not already listed on the common application) — indicate years"</p>

<p>are you guys just putting in extra stuff like "swimming, wakeboarding", stuff like that?</p>

<p>And how are you going about indicating years? just putting (2009) or something after the activity, or do they want the years you've done it?</p>

<p>Anybody know? the second part it was I really need to know</p>