How do you tan your sims in sims 2 bon voyage?

It's just a simple act of sunbaking for the right amount of time. Don't overdo it because you will get sunburnt but also don't get up too soon or nothing will happen. You may have to try a few times to get the time just right. Note: * Sunbaking can only be done on a beach * Tanning will not be permanent Hope this helped!