We have a town full of labs, and all of them whatever color they are, all love to swim, play ball, run on the beach and just plain enjoy life. Have a neighbour with a yellow who is whacky, but its only because they are away at work all day long and he is alone. Yet he is the sweetest dog after he has been 'wound down' for about a half hour.
Our puppy, a yellow female, is pretty active, just loves to play. Reason for getting a yellow lab, is that here on Cape Cod, we are infested with deer ticks which carry Lyme disease, and you can de-tick a yellow dog easier. But if we lived in Maine at my brother's house, we would go chocolate or black without ticks.
Everybody here uses Frontline or the equivalent.
Jane