Manantial La Media Luna is a water source located in San Luis Potosà State. It’s a place full of nature with waterways were you can swim and spend the whole morning. Something that I really like is that the water’s warm and you can eat local food in there. You cannot go in with food or alcoholic drinks, you’re only allowed to bring water and some snacks. My recommendation is to arrive at 8 am to swim without people for a while!