OK, I just bought a “sun shelter” tent for my family for the beach and the local waterpark.

Used it for the first time today, and it can actually get pretty stifling in there, even with the walls down to just the mesh. I figure the solution might be a small fan to move the air around a little, but I have no idea where to start.

Anyone have any experiences with battery powered fans? Does not need to be too big, and for now I am going to say there is no ceiling on the budget so I get the best options.

Here is a picture of the shelter so you can have an idea what I am talking about:

Thanks for your input!!