Yes, there's at least one grill by a picnic table. If you have your back to the building and you're by the villa pool keep walking to the left, there's a path. The canal will be on your right, and on the left there's a dune area with the charcoal grill and picnic table.
Have a great, great time! On one of these trips, I'm going to get my act together and barbecue! That to me will really make me feel at Home! There was one time that I actually mailed grilling utensils down, it was our first all family visit at VWL, but the grills were just too far from the villa and it was too hot to consider eating outside, so we just brought the grilling things home, unused. Oh well, it was a great trip! I fondly remember that we celebrated our DS birthday, and our DGC's first trip to WDW ever.