On the weekends, you’ll have even more free time —  there is no volunteering hours scheduled on Saturday and Sunday. Some groups leave to explore a nearby city (or even a new country, depending on where you’re located). You can also spend the full day adventuring in your home city, like a little stay-cation. Take a train out to the edge of town, spend all morning at a museum, or take a full-day hike to a nearby volcano, beach, or castle.