"Las balsas" are big inflatables. Imagine a big, orange beach ball but super sized and made of a thick material that won't pop easily. They are typically used to float down rivers or in the ocean for fun adventures with family and friends. Think of it like a giant, floating party boat! People can sit or lie on them and feel the water beneath them as they glide along. Sometimes people even tie multiple balsas together to make a bigger party raft! Overall, they are a fun and exciting way to spend time on the water.