Breathing in Eugene's fresh clean air is always more refreshing when you do it at Alton Baker Park. This incredible park stretches out over 402 acres to make it the city's largest riverfront park. And it doesn't matter what season it is, as the park hosts various festivals, running and walking races and community events throughout the year. There's also an off-leash dog park, the Cuthbert Theatre, Pre's Trail and other attractions on the grounds, as well.