One of the things you have to provide for your bees is a source for water. Especially if your neighbor has a swimming pool, like mine does!
I have set up a bucket with a rope and a mop head in it. This gives the bees somewhere to land while they get the water. It's funny. They want it to be a little ways away from the hive and not visible from the hive. And they like the water to be dirty. Go figure! Here is a picture of the bucket, with some bees buzzing around.