We did do a TV vacation while at the Lake, but we did not do a Nintendo DS vacation. We went fishing in the lake, in the river, and in Pokemon diamond.
This is Jonah showing his technique catching a Finneon. Apparently they are a very rare and powerful pokemon.
The video below is Leah battling the eighth gym leader Volkner. A good part of the vacation's pokemon time was spent trying to figure out how to get to the eighth gym leader's gym, and then there was the battle of course. Duly recorded below.