An absolutely spectacular lake, with 3 very large volcanoes. What more can you ask for? You can hire a boat for super cheap to take you around the lake. They will stop where ever you want. There aren't many beaches accessible in the main town, but the boat driver will take you somewhere to swim. My mother-in-law ruined our potential swim by telling us that there are worms in the lake that will crawl up your nose and into your brain, like on the Discovery Channel. Talk about a Debbie Downer. I doubt that is true, but it freaked us out enough to not get into the water. My nephews swam twice & they are still alive.
There are 12 pueblos around the lake (named after the 12 apostles), and the boat drivers will take you to any of them.
If you are in Guatemala, don't pass up an opportunity to see this place!!!! A MUST DO!!!More