Oh, I can totally relate! My GSP is a ball of energy, always ready for more despite long hikes. He just seems to have an endless reserve of enthusiasm, especially for fetch. It's like he has a built-in battery that never runs out.

I feel your pain! My German Shorthaired Pointer will run and run, and then come home looking to play more. They really are known for their high energy and need for consistent activity. It's like they have a switch that just won’t turn off.