After racing down the big slide at Gilley Pool on Tuesday afternoon, Cookeville resident Gunnar Netherton had a smile on his face and praise on his tongue.“This is definitely worth the trip,” said Gunnar, 16. “We come here once or twice a year. Cookeville doesn’t have anything like this.”That seems to be a popular sentiment as Gilley Pool manager Dawn Christian says the pool regularly attracts visitors from all over the state, even as far away as Chattanooga and Knoxville.